Back Clinic Physical Rehabilitation Team. Physical medicine and rehabilitation, which is also known as physiatry or rehabilitation medicine. Its goals are to enhance, restore functional ability and quality of life to those with physical impairments or disabilities affecting the brain, spinal cord, nerves, bones, joints, ligaments, muscles, and tendons. A physician that has completed training is referred to as a physiatrist.
Unlike other medical specialties that focus on a medical cure, the goals of the physiatrist are to maximize the patient’s independence in activities of daily living and improve quality of life. Rehabilitation can help with many body functions. Physiatrists are experts in creating a comprehensive, patient-centered treatment plan. Physiatrists are integral members of the team. They utilize modern, as well as, tried and true treatments to bring optimal function and quality of life to their patients. And patients can range from infants to octogenarians. For answers to any questions you may have please call Dr. Jimenez at 915-850-0900
Results Of A Population-Based Case-Control & Case-Crossover Study
J. David Cassidy, DC, PhD, DrMedSc,*�� Eleanor Boyle, PhD,* Pierre Co�te ?, DC, PhD,*��� Yaohua He, MD, PhD,* Sheilah Hogg-Johnson, PhD,�� Frank L. Silver, MD, FRCPC, and Susan J. Bondy, PhD�
SPINE Volume 33, Number 4S, pp S176 �S183 �2008, Lippincott Williams & Wilkins
Neck pain is a common problem associated with consid- erable comorbidity, disability, and cost to society.1�5 In North America, the clinical management of back pain is provided mainly by medical physicians, physi- cal therapists and chiropractors.6 Approximately 12% of American and Canadian adults seek chiropractic care annually and 80% of these visits result in spinal manipulation.7,8 When compared to those seeking medical care for back pain, Canadian chiropractic pa- tients tend to be younger and have higher socioeco- nomic status and fewer health problems.6,8 In On- tario, the average number of chiropractic visits per episode of care was 10 (median 6) in 1985 through 1991.7 Several systematic reviews and our best- evidence synthesis suggest that manual therapy can benefit neck pain, but the trials are too small to eval- uate the risk of rare complications.9 �13
Two deaths in Canada from vertebral artery dissection and stroke following chiropractic care in the 1990s attracted much media attention and a call by some neurologists to avoid neck manipulation for acute neck pain.14 There have been many published case reports linking neck manipulation to vertebral artery dissection15�and stroke.�The prevailing theory is that extension�and/or rotation of the neck can damage the vertebral artery, particularly within the foramen transversarium at the C1�C2 level. Activities leading to sudden or sustained rotation and extension of the neck have been implicated, included motor vehicle collision, shoulder checking while driving, sports, lifting, working over- head, falls, sneezing, and coughing.16 However, most cases of extracranial vertebral arterial dissection are thought to occur spontaneously, and other factors such as connective tissue disorders, migraine, hyper- tension, infection, levels of plasma homocysteine, vessel abnormalities, atherosclerosis, central venous�catherization, cervical spine surgery, cervical percutaneous nerve blocks, radiation therapy and diagnostic cerebral angiography have been identified as possible risk factors.17�21
The true incidence of vertebrobasilar dissection is un- known, since many cases are probably asymptomatic, or the dissection produces mild symptoms.22 Confirming the diagnosis requires a high index of suspicion and good vascular imaging. The cases that are most likely to be diagnosed are those that result in stroke.19,22 Ischemic stroke occurs when a thrombus develops intraluminally and embolizes to more distal arteries, or less commonly, when the dissection extends distally into the intracranial vertebral artery, obliterating branching vessels.22 The best incidence estimate comes from Olmstead county, where vertebral artery dissection causing stroke affected 0.97 residents per 100,000 population between 1987 and 2003.23
To date there have been two case-control studies of stroke following neck manipulation. Rothwell et al used Ontario health data to compare 582 cases of VBA stroke to 2328 age and sex-matched controls.24 For those aged 45 years, cases were five times more likely than con- trols to have visited a chiropractor within 1 week of VBA stroke. Smith et al studied 51 patients with cervical ar- tery dissection and ischemic stroke or transient ischemic attack (TIA) and compared them to 100 control patients suffering from other strokes not caused by dissections.25 Cases and controls came from two academic stroke cen- ters in the United States and were matched on age and sex. They found no significant association between neck manipulation and ischemic stroke or TIA. However, a subgroup analysis showed that the 25 cases with verte- bral artery dissection were six times more likely to have consulted a chiropractor within 30 days before their stroke than the controls.
Finally, because patients with vertebrobasilar artery dissection commonly present with headache and neck pain,23 it is possible that patients seek chiropractic care for these symptoms and that the subsequent VBA stroke occurs spontaneously, implying that the associ- ation between chiropractic care and VBA stroke is not causal.23,26 Since patients also seek medical care for headache and neck pain, any association between pri- mary care physician (PCP) visits and VBA stroke could be attributed to seeking care for the symptoms of verte- bral artery dissection.
The purpose of this study is to investigate the association between chiropractic care and VBA stroke and compare it to the association between recent PCP care and VBA stroke using two epidemiological designs. Evidence that chiropractic care increases the risk of VBA stroke would be present if the measured association between chiropractic visits and VBA stroke exceeds the association between PCP visits and VBA strokes.
Study Design
We undertook population-based case-control and case- crossover studies. Both designs use the same cases. In the case- control design, we sampled independent control subjects from the same source population as the cases. In the case-crossover design, cases served as their own controls, by sampling control periods before the study exposures.27 This design is most appropriate when a brief exposure (e.g., chiropractic care) causes a transient change in risk (i.e., hazard period) of a rare-onset disease (e.g., VBA stroke). It is well suited to our research questions, since within person comparisons control for unmeasured risk factors by design, rather than by statistical modeling.28 �30 Thus the advantage over the case control design is better control of confounding.
Source Population
The source population included all residents of Ontario (109,020,875 person-years of observation over 9 years) covered by the publicly funded Ontario Health Insurance Plan (OHIP). Available utilization data included hospitalizations with diagnostic coding, and practitioner (physician and chiropractic) utilization as documented by fee-for-service billings accompanied by diagnostic coding. We used two data sources: (1) the Discharge Abstract Database (DAD) from the Canadian Institute for Health Information, which captures hospital separations and ICD codes, and (2) the OHIP Databases for services provided by physicians and chiropractors. These data- bases can be linked from April 1992 onward.
Cases
We included all incident vertebrobasilar occlusion and stenosis strokes (ICD-9433.0 and 433.2) resulting in an acute care hospital admission from April 1, 1993 to March 31, 2002. Codes were chosen in consultation with stroke experts and an epidemiologist who participated in a similar past study (SB).24 Cases that had an acute care hospital admission for any type of stroke (ICD-9433.0, 433.2, 434, 436, 433.1, 433.3, 433.8, 433.9, 430, 431, 432, and 437.1), transient cerebral ischemia (ICD- 9435) or late effects of cerebrovascular diseases (ICD-9438) before their VBA stroke admission or since April 1, 1991 were excluded. Cases residing in long-term care facilities were also excluded. The index date was defined as the hospital admission date for the VBA stroke.
Controls
For the case-control study, four age and sex-matched controls were randomly selected from the Registered Persons Database, which contains a listing of all health card numbers for Ontario. Controls were excluded if they previously had a stroke or were residing in a long-term care facility.
For the case crossover study, four control periods were randomly chosen from the year before the VBA stroke date, using a time-stratified approach.31 The year was divided into disjoint strata with 2 week periods between the strata. For the 1 month hazard period, the disjoint strata were separated by 1 month periods and the five remaining control periods were used in the analyses. We randomly sampled disjoint strata because chiropractic care is often delivered in episodes, and this strategy eliminates overlap bias and bias associated with time trends in the exposure.32
Exposures
All reimbursed ambulatory encounters with chiropractors and PCPs were extracted for the one-year period before the index date from the OHIP database. Neck-related chiropractic visits were identified using diagnostic codes: C01�C06, cervical and cervicothoracic subluxation; C13�C15, multiple site subluxation; C30, cervical sprain/strain; C40, cervical neuritis/ neuralgia; C44, arm neuritis/neuralgia; C50, brachial radiculitis; C51, cervical radiculitis; and C60, headache. For PCP visits, we included community medicine physicians if they submitted ambulatory fee codes to OHIP. Fee codes for group therapy and signing forms were excluded. Headache or neck pain- related PCP visits were identified using the diagnostic codes: ICD-9307, tension headaches; 346, migraine headaches; 722, intervertebral disc disorders; 780, headache, except tension headache and migraine; 729, fibrositis, myositis and muscular rheumatism; and 847, whiplash, sprain/strain and other traumas associated with neck (These codes include other diagnoses, and we list only those relevant to neck pain or headache). There is no limit on the number of reimbursed PCP visits per year. However, there are limits chiropractors, but less than 15% of patients surpass them.24
Statistical Analysis
Conditional logistic regression was used to estimate the asso- ciation between VBA stroke after chiropractor and PCP visits. Separate models were built using different a priori specified hazard periods, stratified by age ( 45 years and 45 years) and by visits with or without head and neck pain related diag- nostic codes. For the chiropractic analysis, the index date was included in the hazard period, since chiropractic treatment might cause immediate stroke and patients would not normally consult a chiropractor after having a stroke. However, the in- dex day was excluded from the PCP analysis, since patients might consult these physicians after experiencing a stroke. We tested different hazard periods, including 1 day, 3 days, 1 week, 2 weeks, and 1 month before the index date. Exposure occurred if any chiropractic or PCP visits were recorded during the des- ignated hazard periods.
We also measured the effect of cumulative numbers of chiropractic and PCP visits in the month before the index date by computing the odds ratio for each incremental visit. These estimates were similarly stratified by age and by diagnostic codes related to headache and/or neck pain. Finally, we conducted analyses to determine if our results were sensitive to chiropractic and PCP visits related to neck complaints and headaches. We report our results as odds ratios (OR) and 95% confidence intervals. Confidence intervals were estimated by accelerated bias corrected bootstraps with 2000 replications using the variance co-variance method.33 All statistical analyses were per- formed using STATA/SE version 9.2.34
Results
A total of 818 VBA strokes met our inclusion/exclusion criteria over the 9 year inception period. Of the 3272 matched control subjects, 31 were excluded because of prior stroke, one had died before the index date and 76 were receiving long-term care. Thus, 3164 control subjects were matched to the cases. The mean age of cases and controls was 63 years at the index date and 63% were male. Cases had a higher proportion of comorbid conditions (Table 1). Of the 818 stroke cases, 337�(41.2%) were coded as basilar occlusion and stenosis, 443 (54.2%) as vertebral occlusion and stenosis and 38 (4.7%) had both codes.
Overall, 4% of cases and controls had visited a chiropractor within 30 days of the index date, while 53% of cases and 30% of controls had visited a PCP within that time (Table 2). For those under 45 years of age, 8 cases (7.8%) had consulted a chiropractor within 7 days of the index date, compared to 14 (3.4%) of controls. For PCPs, 25 cases (24.5%) under 45 years of age had a consultation within 7 days of the index date, com- pared to 27 (6.6%) of controls. With respect to the number of visits within 1 month of the index date, 7.8% of cases under the age of 45 years had three or more chiropractic visits, whereas 5.9% had three or more PCP visits (Table 2).
The case control and case crossover analyses gave similar results. (Tables 3�7) Age modified the effect of chiropractic visits on the risk of VBA stroke. For those under 45 years of age, there was an increased association between chiropractic visits and VBA stroke regardless of the hazard period. For those 45 years of age and older, there was no association. Each chiropractic visit in the month before the index date was associated with an in- creased risk of VBA stroke in those under 45 years of age (OR 1.37; 95% CI 1.04�1.91 from the case crossover analysis) (Table 7). We were not able to estimate boot- strap confidence intervals in some cases because of sparse data.
Similarly, we found that visiting a PCP in the month before the index date was associated with an increased risk of VBA stroke regardless of the hazard period, or the age of the subject. Each PCP visit in the month before the stroke was associated with an increased risk of VBA stroke both in those under 45 years of age (OR 1.34; 95% CI 0.94 �1.87 from the case crossover analysis) and 45 years and older (OR 1.52; 95% CI 1.36�1.67 from the case crossover analysis) (Table 7).
Our results were sensitive to chiropractic and PCP visits related to neck complaints and headaches, and we observed sharp increases in the associations when restricting the analyses to these visits (Tables 3�7). Overall,�these associations were more pronounced in the PCP analyses. However, the data are sparse, and we were unable to compute bootstrap confidence intervals in many cases.
Discussion
Our study advances knowledge about the association between chiropractic care and VBA stroke in two respects. First, our case control results agree with past case control studies that found an association between chiropractic care and vertebral artery dissection and VBA stroke.24,25 Second, our case crossover results confirm these findings using a stronger research design with better control of confounding variables. The case-crossover design controls for time independent confounding factors, both known and unknown, which could affect the risk of VBA stroke. This is important since smoking, obesity, undiagnosed hypertension, some connective tis- sue disorders and other important risk factors for dissection and VBA stroke are unlikely to be recorded in ad- ministrative databases.
We also found strong associations between PCP visits and subsequent VBA stroke. A plausible explanation for this is that patients with head and neck pain due to vertebral artery dissection seek care for these symptoms, which precede more than 80% of VBA strokes.23 Since it�is unlikely that PCPs cause stroke while caring for these patients, we can assume that the observed association between recent PCP care and VBA stroke represents the background risk associated with patients seeking care for dissection-related symptoms leading to VBA stroke. Be- cause the association between chiropractic visits and VBA stroke is not greater than the association between PCP visits and VBA stroke, there is no excess risk of VBA stroke from chiropractic care.
Our study has several strengths and limitations. The study base includes an entire population over a 9-year period representing 109,020,875 person-years of observation. Despite this, we found only 818 VBA strokes, which limited our ability to compute some estimates and bootstrap confidence intervals. In particular, our age stratified analyses are based on small numbers of ex- posed cases and controls (Table 2). Further stratification by diagnostic codes for headache and neck pain related visits imposed even greater difficulty with these estimates. However, there are few databases that can link�incident VBA strokes with chiropractic and PCP visits in a large enough population to undertake a study of such a rare event.
A major limitation of using health administrative data are misclassification bias, and the possibility of bias in assignment of VBA-related diagnoses, which has previously been raised in this context.24 Liu et al have shown that ICD-9 hospital discharge codes for stroke have a poor positive predictive value when compared to chart review.35 Furthermore, not all VBA strokes are secondary to vertebral artery dissection and administrative databases do not provide the clinical detail to determine the specific cause. To investigate this bias, we did a sensitivity analysis using different positive predictive values for stroke diagnosis (ranging from 0.2 to 0.8). Assuming non differential misclassification of chiropractic and PCP cases, our analysis showed attenuation of the estimates towards the null with lower positive predictive values, but the conclusions did not change (i.e., associations remained positive and significant�data not shown). The�reliability and validity of the codes to classify headache and cervical visits to chiropractors and PCPs is not known.
It is also possible that patients presenting to hospital with neurologic symptoms who have recently seen a chiropractor might be subjected to a more vigorous diagnostic workup focused on VBA stroke (i.e., differential misclassification).36 In this case, the predictive values of the stroke codes would be greater for cases that had seen a chiropractor and our results would underestimate the association between PCP care and VBA stroke.
A major strength of our study is that exposures were measured independently of case definition and handled identically across cases and controls. However, there was some overlap between chiropractic care and PCP care. In the month before their stroke, only 16 (2.0%) of our cases had seen only a chiropractor, while 20 (2.4%) had seen both a chiropractor and PCP, and 417 (51.0%) had�just seen only a PCP. We were not able to run a subgroup analysis on the small number of cases that just saw a chiropractor. However, subgroup analysis on the PCP cases (n 782) that did not visit a chiropractors during the 1 month before their stroke did not change the conclusions (data not shown).
Our results should be interpreted cautiously and placed into clinical perspective. We have not ruled out neck manipulation as a potential cause of some VBA strokes. On the other hand, it is unlikely to be a major cause of these rare events. Our results suggest that the association between chiropractic care and VBA stroke found in previous studies is likely explained by present- ing symptoms attributable to vertebral artery dissection. It might also be possible that chiropractic manipulation, or even simple range of motion examination by any practitioner, could result in a thromboembolic event in a patient with a pre-existing vertebral dissection. Unfortunately, there is no acceptable screening procedure to identify patients with neck pain at risk of VBA stroke.37 These events are so rare and difficult to diagnose that future studies would need to be multi-centered and have unbiased ascertainment of all potential exposures. Given our current state of knowledge, the decision of how to treat patients with neck pain and/or headache should be driven by effectiveness and patient preference.38
Conclusion
Our population-based case-control and case-crossover study shows an association between chiropractic visits and VBA strokes. However, we found a similar association between primary care physician visits and VBA stroke. This suggests that patients with undiagnosed vertebral artery dissection are seeking clinical care for head- ache and neck pain before having a VBA stroke.
Acknowledgments
The authors acknowledge the members of the Decade of the Bone and Joint 2000 �2010 Task Force on Neck Pain and its Associate Disorders for advice about de- signing this study. In particular, they acknowledge the help of Drs. Hal Morgenstern, Eric Hurwitz, Scott Haldeman, Linda Carroll, Gabrielle van der Velde, Lena Holm, Paul Peloso, Margareta Nordin, Jaime Guzman, Eugene Carragee, Rachid Salmi, Alexander Grier, and Mr. Jon Schubert.
References
1. Borghouts JA, Koes BW, Vondeling H, et al. Cost-of-illness of neck pain in The Netherlands in 1996. Pain 1999;80:629�36.
2. Co�te� P, Cassidy JD, Carroll L. The Saskatchewan Health and Back PainSurvey. The prevalence of neck pain and related disability in Saskatchewan adults. Spine 1998;23:1689�98.
3. Co�te� P, Cassidy JD, Carroll L. The factors associated with neck pain and its related disability in the Saskatchewan population. Spine 2000;25:1109�17.
4. Co�te� P, Cassidy JD, Carroll L. Is a lifetime history of neck injury in a trafficcollision associated with prevalent neck pain, headache and depressive symptomatology? Accid Anal Prev 2000;32:151�9.
5. Co�te� P, Cassidy JD, Carroll LJ, et al. The annual incidence and course of neck pain in the general population: a population-based cohort study. Pain 2004; 112:267�73.
6. Co�te� P, Cassidy JD, Carroll L. The treatment of neck and low back pain: who seeks care? who goes where? Med Care 2001;39:956�67.
7. Hurwitz EL, Coulter ID, Adams AH, et al. Use of chiropractic services from 1985 through 1991 in the United States and Canada. Am J Public Health1998;88:771�6.
8. Hurwitz EL, Chiang LM. A comparative analysis of chiropractic and general practitioner patients in North America: findings from the jointCanada/United States Survey of Health, 2002�03. BMC Health Serv Res 2006;6:49.
9. Aker PD, Gross AR, Goldsmith CH, et al. Conservative management of mechanical neck pain: systematic overview and meta-analysis. BMJ 1996; 313:1291�6.
10. Gross AR, Kay T, Hondras M, et al. Manual therapy for mechanical neckdisorders: a systematic review. Man Ther 2002;7:131�49.
11. Hurwitz EL, Aker PD, Adams AH, et al. Manipulation and mobilization of the cervical spine. A systematic review of the literature. Spine 1996;21:1746�59.
12. McClune T, Burton AK, Waddell G. Whiplash associated disorders: a review of the literature to guide patient information and advice. Emerg Med J 2002;19:499�506.
13. Peeters GG, Verhagen AP, de Bie RA, et al. The efficacy of conservative treatment in patients with whiplash injury: a systematic review of clinical trials. Spine 2001;26:E64�E73.
14. Norris JW, Beletsky V, Nadareishvili ZG. Sudden neck movement and cervical artery dissection. The Canadian Stroke Consortium. CMAJ 2000;163:38�40.
15. Ernst E. Manipulation of the cervical spine: a systematic review of case reports of serious adverse events, 1995�2001. Med J Aust 2002;176:376�80.
16. Haldeman S, Kohlbeck FJ, McGregor M. Risk factors and precipitating neckmovements causing vertebrobasilar artery dissection after cervical trauma and spinal manipulation. Spine 1999;24:785�94.
17. Rubinstein SM, Peerdeman SM, van Tulder MW, et al. A systematic reviewof the risk factors for cervical artery dissection. Stroke 2005;36:1575�80.
18. Inamasu J, Guiot BH. Iatrogenic vertebral artery injury. Acta Neurol Scand 2005;112:349�57.
19. Schievink WI. Spontaneous dissection of the carotid and vertebral arteries. N Engl J Med 2001;344:898�906.
20. D�Anglejan-Chatillon J, Ribeiro V, Mas JL, et al. Migraine�a risk factor for dissection of cervical arteries. Headache 1989;29:560�1.
21. Pezzini A, Caso V, Zanferrari C, et al. Arterial hypertension as risk factor for spontaneous cervical artery dissection. A case-control study. J Neurol Neurosurg Psychiatry 2006;77:95�7.
22. Savitz SI, Caplan LR. Vertebrobasilar disease. N Engl J Med 2005;352: 2618�26.
23. Lee VH, Brown RD Jr, Mandrekar JN, et al. Incidence and outcome of cervical artery dissection: a population-based study. Neurology 2006;67: 1809�12.
24. Rothwell DM, Bondy SJ, Williams JI. Chiropractic manipulation and stroke: a population-based case-control study. Stroke 2001;32:1054�60.
25. Smith WS, Johnston SC, Skalabrin EJ, et al. Spinal manipulative therapy is an independent risk factor for vertebral artery dissection. Neurology 2003;60: 1424�8.
26. Arnold M, Bousser MG, Fahrni G, et al. Vertebral artery dissection: presenting findings and predictors of outcome. Stroke 2006;37:2499�503.
27. Maclure M. The case-crossover design: a method for studying transient effects on the risk of acute events. Am J Epidemiol 1991;133:144�53.
28. Kelman CW, Kortt MA, Becker NG, et al. Deep vein thrombosis and air travel: record linkage study. BMJ 2003;327:1072.
29. Mittleman MA, Maclure M, Tofler GH, et al. Triggering of acute myocardial infarction by heavy physical exertion. Protection against triggering by regular exertion. Determinants of Myocardial Infarction Onset Study Investigators.
N Engl J Med 1993;329:1677�83.
30. Redelmeier DA, Tibshirani RJ. Association between cellular-telephone calls and motor vehicle collisions. N Engl J Med 1997;336:453�8.
31. Janes H, Sheppard L, Lumley T. Overlap bias in the case-crossover design, with application to air pollution exposures. Stat Med 2005;24:285�300.
32. Janes H, Sheppard L, Lumley T. Case-crossover analyses of air pollution exposure data: referent selection strategies and their implications for bias. Epidemiology 2005;16:717�26.
33. Efron B, Tibshirani RJ. An Introduction to the Bootstrap. New York: Chapmanand Hall/CRC, 1993.
34. STATA/SE [computer program]. College Station, Tex: Stata Corp, 2006.
35. Liu L, Reeder B, Shuaib A, et al. Validity of stroke diagnosis on hospital discharge records in Saskatchewan, Canada: implications for stroke surveillance. Cerebrovasc Dis 1999;9:224�30.
36. Boyle E, Co�te� P, Grier AR, et al. Examining vertebrobasilar artery stroke in two Canadian provinces. Spine, in press.
37. Co�te� P, Kreitz BG, Cassidy JD, et al. The validity of the extension-rotation test as a clinical screening procedure before neck manipulation: a secondary analysis. J Manip Physiol Therap 1996;159�64.
38. van der Velde G, Hogg-Johnson S, Bayoumi A, et al. Identifying the best treatment among common non-surgical neck pain treatments: a decision analysis. Spine 2008;33(Suppl):S184�S191.
Key words: vertebrobasilar stroke, case control stud- ies, case crossover studies, chiropractic, primary care, complications, neck pain. Spine 2008;33:S176�S183
From the *Centre of Research Expertise for Improved Disability Outcomes (CREIDO), University Health Network Rehabilitation Solutions, Toronto Western Hospital, and the Division of Heath Care and Outcomes Research, Toronto Western Research Institute, Toronto, ON, Canada; �Department of Public Health Sciences, Management and Evaluation, University of Toronto, Toronto, ON, Canada; �Department of Health Policy, Management and Evalua- tion, University of Toronto, Toronto, ON, Canada; �Institute for Work & Health, Toronto, ON, Canada; �University Health Net- work Stroke Program, Toronto Western Hospital, Toronto, ON, Canada; and Division of Neurology, Department of Medicine, Fac- ulty of Medicine, University of Toronto, Toronto, ON, Canada. Supported by Ontario Ministry of Health and Long-term Care. P.C. is supported by the Canadian Institute of Health Research through a New Investigator Award. S.H.-J. is supported by the Institute for Work & Health and the Workplace Safety and Insurance Board of Ontario. The opinions, results, and conclusions are those of the authors and no endorsement by the Ministry is intended or should be inferred.
The manuscript submitted does not contain information about medical device(s)/drug(s).
University Health Network Research Ethics Board Approval number 05-0533-AE.
Address correspondence and reprint requests to J. David Cassidy, DC, PhD, DrMedSc, Toronto Western Hospital, Fell 4-114, 399 Bathurst Street, Toronto, ON, Canada M5T 2S8; E-mail: dcassidy@uhnresearch.ca
A chiropractor is a doctor who specializes in musculoskeletal and nervous system problems. It is the belief of the chiropractic community that problems in these areas can cause adverse health issues, including lowered resistance to disease, illness, and injury.
Chiropractors manipulate the spine to realign spinal joints in their patients. By doing so, patients are expected to experience optimum health without the assistance of drugs or surgery. Instead, chiropractors expect the body will heal itself once the spine and spinal joints are in proper alignment. Additionally, chiropractors consider and address other lifestyle factors which are commonly recognized as significantly affecting health such as diet, rest, exercise, heredity, and environmental factors. They also make other recommendations for changes which are expected to improve the patient�s overall health.
Chiropractors perform many of the same tasks as other general and specialty doctors. Patient health histories are gathered, physical, neurological, and orthopedic examinations are performed, and various laboratory tests, x-rays, and diagnostic imaging tools are used to diagnose and analyze the patient�s condition. Other forms of treatment may be used or recommended by the chiropractor including ultrasound, massage, heat, water, acupuncture, or electric currents. Prescription drugs and surgery are not part of the services provided by chiropractors. Chiropractors may recommend patients to see other doctors or specialists to address health issues or concerns outside of their area of expertise. Some chiropractors choose to specialize in a certain type of practice, such as orthopedics, neurology, sports injuries, internal disorders, diagnostic imaging, or pediatrics.
The Bureau of Labor Statistics predicts a job growth increase of 17% in the chiropractic field over the next seven years. An increasing public interest in alternative healthcare methods is beneficial to the chiropractic field. The public is seeking healthy living options which do not include prescription medicines or surgery; instead, a substantial number of people are searching for solutions which emphasize healthy lifestyles. The non-invasive procedures provided by chiropractors in answer to their patients health issues and concerns appeals to the segment of the public looking for these types of answers.
SELECTING THE RIGHT CHIROPRACTIC COLLEGE
Chiropractor students should select a college which offers a strong science degree or pre-medical program. Some colleges may have an affiliation with chiropractic training schools, which all future chiropractors must successfully complete. Research chiropractic schools to determine which one you are most interested in attending; this will help you to determine if the school is linked to any of the colleges you are considering. Courses in biology, chemistry, and physics will be important to individuals looking to work in a medical field. Electives may be concentrated in health, fitness, and nutrition. Students should, if given the opportunity, study topics and courses related to kinesiology and sports medicine. Courses in psychology and sociology will also help students to gain a more comprehensive understanding of people and society, better preparing them to serve the public. Additionally, business courses ensure that future professionals understand how to successfully manage a business in the complex healthcare field, as medical professionals must understand finances, medical insurance processing, business laws, business practices, business ethics, and medical records maintenance.
CHIROPRACTIC SCHOOLS
Students must attend chiropractic college in order to enter the profession. Upon completion of the program, students will have earned a doctorate in chiropractic medicine. The Council on Chiropractic Education, or CCE, is the nationally recognized accrediting agency by the United States Secretary of Education which regulates the quality of the curriculum offered at chiropractic colleges. Currently there are 15 CCE accredited chiropractic institutions in the United States. These include, as listed on the CCE website:
Students attend chiropractic college for four years. During this time, students are taught the scientific and academic skills and knowledge required to become experts in the field of chiropractic medicine. The final year is spent in practice, performing the functions of a chiropractic doctor under the supervision of an experienced professional. The curriculum includes intensive study of neuromusculoskeletal conditions, nutritional and holistic health, specialized and focused curriculum in areas of acupuncture and oriental medicine, applied nutrition, and various other disciplines. Students will complete extensive course hours in diagnosis, biochemistry, anatomy, chiropractic technique, and philosophy and ancillary therapeutic procedures.
TAKING THE NATIONAL BOARD EXAM
The National Board Exam for chiropractors is administered by the NBCE. The test is given twice each year. The exam consists of three parts. Part one is 110 multiple choice questions relating to general anatomy, spinal anatomy, physiology, chemistry, pathology, microbiology, and public health. The second part also consists of 110 multiple choice questions, but in the areas of general diagnosis, neuromusculoskeletal diagnosis, diagnostic imaging, and principles of chiropractic, chiropractic practice, and associated clinical sciences. Part three of the test consists of another 110 multiple choice questions and 10 case vignettes covering the areas of diagnosis or clinical impression, clinical laboratory and special studies examination, chiropractic techniques, case management, physical examination, case history, and roentgenologic examination. Each part of the test is timed. Additional specialized testing is offered for applicants who choose to pursue an area of specialization.
LICENSING FOR CHIROPRACTORS
After successful completion of an accredited chiropractic program, graduates will need to obtain a license to practice in their resident state or the state in which they intend to practice. State licensure regulations may vary from state to state. It is important to research your state�s regulations prior to completion of the doctor of chiropractic program to ensure all conditions are met. The Federation of Chiropractic Licensing Boards is a nonprofit organization which provides a link to the licensure information in all states. Locate information for each state through this directory.
The information provided includes licensing fees, renewal requirements, national board testing requirements, security and criminal check requirements, additional certification requirements, continuing education, and malpractice insurance requirements. A link to each state licensing board is also provided.
CONTINUING EDUCATION FOR CHIROPRACTORS
The chiropractic field is experiencing an increase in advancements in technology and knowledge through research and academic exploration. Changing regulations are also an area in which chiropractic doctors will need to remain current. Each state maintains their own continuing education requirements upon which licensing will be contingent. Twenty-four credit hours of continuing education every two years is a common requirement. All programs must be board approved and conducted by approved colleges or chiropractic associations or organizations. Check with your state licensing board to determine if the program has been approved prior to enrollment.
PRACTICING AS A CHIROPRACTOR
After obtaining a doctorate and passing the licensing examination, a new chiropractor has many options ahead of them. Most chiropractors will end up working solo or in a group practice, with about one in three being self-employed. A small group will work in hospitals or physicians� offices. The median pay for Chiropractors in 2016 was $67,520, with the lowest 10 percent earning less than $32,380, and the highest earning more than $141,030. Chiropractors can further increase their salary by building up a strong client base and developing their own practice. Many times, chiropractors will work in the evening or on weekends to accommodate their patients.
DAY TO DAY PRACTICE
Chiropractors will spend a lot of time on their feet as they examine and treat patients. Some of the most important qualities that a chiropractor can have include decision-making, detail-oriented, dexterity, empathy, and interpersonal skills. If the chiropractor is operating his or her own practice, the ability to manage a staff of employees like secretaries and nurses is vital to the success of the practice. An understanding of the current healthcare system is also important, as that will determine what kind of payments a chiropractor may be able to receive, unless they work in a cash-only system. More information can be found in the Occupational Outlook Handbook provided by the BLS.
CHIROPRACTIC SPECIALTIES AND CERTIFICATIONS
Another way for chiropractors to increase their annual earnings or skills would be to specialize in one or more areas. Specializations can help a chiropractor better diagnose and treat chronic illnesses, sports injuries, and/or complex occupational injuries. The American Chiropractic Association and American Board of Chiropractic Specialties (ABCS) lists 14 specialties and provides guidance to maintain standards of chiropractic certification. These include, as listed on the American Chiropractic Association website:
Chiropractic Physiotherapy and Rehabilitation (DACRB) Specialist
Has had extensive postgraduate training in physiologic therapeutics and rehabilitation to better treat injuries that may have resulted from an accident or a sports injury.
Treats a wide variety of health conditions that include all body systems and tissues, and focuses special attention on the relationship between the spine, nervous system, and the meridian system.
Is trained to encourage and promote a more advanced knowledge and use of nutrition in the practice of chiropractic for the maintenance of health and the prevention of disease.
Has special knowledge of both the normal function and diseases of the bones, joints, capsules, discs, muscles, ligaments, and tendons, as well as their complete neurological components, referred organ systems and contiguous tissues, and is able to diagnose and treat the conditions related to them.
Diplomate of the American Board of Forensic Professionals (DABFP)
Performs an orderly analysis, investigation, inquiry, test, inspection, and examination in an attempt to obtain the facts of a case, from which to form an expert opinion.
Is trained in chiropractic sports medicine and exercise science in order to treat sports injuries, enhance athletic performance, and promote physical fitness.
Chiropractic Occupational Health (DACBOH) Specialist
A DC trained in health care diagnosis and treatment choices for workplace neuromusculoskeletal injuries who is able to provide a broad range of work-related injury and illness prevention services for employee populations.
Diplomate in Clinical Chiropractic Pediatrics (DICCP)
Support members who take care of children in their chiropractic practices, and to promote the acceptance and advancement of pediatric chiropractic care.
These specialty �degrees� are given by their corresponding boards, which also maintain the level of expected qualifications and standards of excellency.
Chiropractor, Dr. Alexander Jimenez examines the role of biomechanics in medial tibial stress syndrome…
Medial tibial stress syndrome (MTSS � commonly known as shin splints) is not medically serious, yet can suddenly side- line an otherwise healthy athlete. Roughly five percent of all athletic injuries are diagnosed as MTSS(1).
The incidence increases in specific populations, accounting for 13-20% of injuries in runners and up to 35% in military recruits(1,2). MTSS is defined as pain along the posterior-medial border of the lower half of the tibia, which is present during exercise and (usually) diminishes during rest. Athletes identify the lower front half of the leg or shin as the location of discomfort. Palpation along the medial tibia usually reproduces the pain.
Causes Of MTSS
There are two main hypothesized causes for MTSS. The first is that contracting leg�muscles place a repeated strain upon the medial portion of the tibia, inducing periostitis � inflammation of the periosteal outer layer of bone. While the pain of a shin splint is felt along the anterior leg, the muscles that arise from this area are the posterior calf muscles (see figure 1). The tibialis posterior, flexor digitorum longus, and the soleus all arise from the posterior- medial aspect of the proximal half of the tibia. Therefore, the traction force from these muscles on the tibia is unlikely to be the cause of the pain typically felt on the distal portion of the leg.
A variation of this tension theory is that the deep crural fascia (DCF) � the though- connective tissue that surrounds the deep posterior compartment muscles of the leg � pulls excessively on the tibia, again causing trauma to the bone. Researchers at�the University of Honolulu examined a single leg from five male and 11 female adult cadavers. They confirmed that in these specimens, the muscles of the posterior compartment originated above the portion of the leg that is typically painful in MTSS, and the DCF indeed attached along the entire length of the medial tibia(3).
Doctors at the Swedish Medical Centre in Seattle, Washington wondered if, given the anatomy, could the tension from the posterior calf muscles produce a related strain on the tibia at the insertion of the DCF, and thus be the mechanism of injury(4)?
In a descriptive laboratory pilot study of three fresh cadaver specimens, they found that strain at the insertion site of the DCF along the medial tibia progressed linearly as tension increased in the posterior leg muscles. This confirmed that a mechanism for a tension-induced injury at the medial tibia is plausible. However, studies of bone periosteum in MTSS patients have yet to find inflammatory markers consistently enough to confirm the periostitis theory(5).
Tibial Bowing
The second causation theory for MTSS is that repetitive or excessive loading causes a bone-stress reaction in the tibia. The tibia, unable to adequately bear the load, bends during weight bearing. The overload results in micro damage within the bone, and not just along the outer layer. When the repetitive loading outpaces the bone�s ability to repair, localized osteopenia can result. Thus, some consider a tibial stress fracture to be the result of a continuum of bone stress reactions that include MTSS(1).
Magnetic resonance imaging (MRI) of the symptomatic leg often shows bone�marrow edema, periosteal lifting, and areas of increased bony resorption in patients with MTSS(1,5). This supports the bone- stress reaction theory. Magnetic resonance imaging of an athlete with a clinical presentation of MTSS can also help rule out other causes of lower leg pain such as tibial stress fracture, deep posterior compartment syndrome, and popliteal artery entrapment syndrome.
Risk Factors For MTSS
While the aetiology of MTSS is still theoretical, the risk factors for athletes developing it are well determined. A large navicular drop, as determined by the navicular drop test (NDT), significantly correlates with a diagnosis of MTSS(2,5). The NDT measures the difference in height position of the navicular bone, from a neutral subtalar joint position in supported non-weight bearing, to full weight bearing (see figures 2 and 3). The NDT is an indication of the degree of arch collapse during weight bearing. An excursion of more than 10 mm is considered excessive and a significant risk factor for the development of MTSS(5).
Research suggests that athletes with MTSS are found more likely to be female, have a higher BMI, less running experience, and a previous history of MTSS(2,5). Running kinematics for females can differ from males and fit a pattern that is known to leave them vulnerable to anterior cruciate ligament tears and patellofemoral pain syndrome(5). This same biomechanical pattern may also predispose females to MTSS. Hormonal considerations and low bone density are possibly contributing factors in increasing the risk of MTSS in the female athlete as well.
A higher BMI in an athlete likely indicates they have more muscle mass rather than they are overweight. The end result, however, is the same in that the legs bear a significantly heavy load. It is thought that in these instances, the bone growth�stimulated by the tibial bowing may not progress rapidly enough, and injury to the bone occurs. Therefore, those with a higher BMI may need to progress their training programs more slowly, to allow for adaptation.
Those with less running experience are more likely to make training errors (often identified by the athlete) as the catalyst for MTSS. These include increasing distance�too rapidly, changing terrain, overtraining, poor equipment (shoes), etc. Inexperience may also lead the athlete to return to activity too soon, thus accounting for the higher prevalence of MTSS in those who had suffered MTSS previously. Full recovery from MTSS can take anywhere from six to ten months, and if the cause of injury was not rectified or the athlete returns to training too soon, the chances are good the pain will return(5).
Biomechanical Considerations
The NDT is used as a measurable indication of foot pronation. Pronation is a tri-planar movement comprised of eversion at the hind foot, abduction of the forefoot, and dorsiflexion of the ankle. Pronation is a normal movement, and essential in walking and running. When the foot strikes the ground at the initial contact phase of running, the foot begins to pronate and the joints of the foot assume a loose-packed position. This flexibility helps the foot absorb ground reaction forces (see figure 4).
During the loading response phase, the foot further pronates, reaching peak pronation by around 40% of stance phase(6). In mid stance, the foot moves out of pronation and back to a neutral position. During terminal stance, the foot supinates, moving the joints into a closed packed position and creating a rigid lever arm from which to generate the forces for toe off.
Beginning with the loading response phase and throughout the remainder of the single leg stance phase of running, the hip is stabilized, extended, abducted and externally rotated by the concentric contraction of the hip muscles of the stance�leg (the gluteals, piriformis, obturator internus, superior gemellus and inferior gemellus). Weakness or fatigue in any of these muscles can result in internal rotation of the femur, adduction of the knee, internal rotation of the tibia, and over-pronation (see figure 5). Overpronation therefore, can be a result of muscle weakness or fatigue. If this is the case, the athlete may have a quite normal NDT, and yet when the hip muscles don�t function as needed, can overpronate.
In a runner who has significant over pronation, the foot may continue to pronate into mid stance, resulting in a�delayed supination response, and thus less power generation at toe off. The athlete may attempt two biomechanical fixes here that could contribute to the development of MTSS. Firstly, the tibialis posterior will strain to prevent the over pronation. This can add tension to the DCF and strain the medial tibia. Secondly, the gastroc-soleus complex will contract more forcefully at toe off to improve the power generation. Again, the increased force within these muscle groups can theoretically add tension to the medial tibia through the DCF and possibly irritate the periosteum.
Evaluating The Injured Athlete
Knowing that over pronation is one of the leading risk factors for MTSS, start your evaluation at the ground and work your way up. First, perform the NDT, noting if the difference is more than 10mm. Analyze the athlete�s running gait on a treadmill, preferably when the muscles are fatigued, as at the end of a training run. Even with a normal NDT, you may see evidence of over pronation in running (see figure 6).
Next evaluate the knee. Is it adducted? Notice if the hip is level or if either hip is more than 5 degrees from level. These are indications that there is likely weakness at the hip. Traditional muscle testing may not reveal the weakness; therefore, functional muscle testing is required.
Observe the athlete perform a one-legged squat with arms in and arms overhead. Does the hip drop, the knee adduct and the foot pronate? Test the strength of hip abductors in side lying, with hip in neutral, extended, and flexed, keeping the knee straight (see figure 7). Test all three positions with hip rotated in neutral, and at end ranges of external and internal rotation. Test hip extension in prone with the knee straight and bent, in all three positions of hip rotation: external, neutral and internal. The position where you find the weakness is where you should begin strengthening activities.
Treat The kinetic Chain
If there is weakness in the hip, begin by having the athlete perform isometric exercises in the position of weakness. For instance, if you find weakness in hip abduction with extension, then begin isolated isometrics in this position. Not until the muscles consistently fire isometrically in this position for three to five sets of 10 to 20 seconds should you add movement. Once the athlete achieves this level, begin concentric contractions, in that same position, against gravity. Some examples are unilateral bridging and side lying abduction. Eccentric contractions should follow, and then sport specific drills.
Keep in mind if there are other biomechanical compensations, they must also be addressed. If the tibialis posterior is also weak, begin strengthening there. If the calf muscles are tight, initiate a stretching program. Utilise whatever modalities might be helpful. Lastly, consider a stabilising shoe if the ligaments in the foot are over stretched. Using a stabilising shoe for a short time during rehabilitation can�be helpful in cuing the athlete to adopt new movement patterns.
Conclusion
The best way to prevent shin pain from MTSS is to decrease the athlete�s risk factors. Ideally, each athlete should have a basic running gait analysis and proper shoe fitting. Include hip strengthening in functional positions such as unilateral stance as part of the strengthening program. Pair inexperienced athletes with a more experienced mentor to ensure proper training, use of equipment, and investigation of pain at onset. They may be more likely to tell a teammate they are feeling pain than a coach or trainer. Progress the running schedule of heavier athletes more slowly to allow adaptation of the bone. Ensure that athletes fully rehabilitate before returning to play because the chances of recurrence of MTSS are high.
References
1. Am J Sports Med. 2015 Jun;43(6):1538-47
2. Br J Sports Med. 2015 Mar;49(6):362-9
3. Med Sci Sports Exerc. 2009;41(11):1991-1996
4. J Am Podiatr Med Assoc. 2007 Jan;97(1):31-6
5. J Sports Med. 2013;4:229-41
6. Gait and Posture. 1998;7:77�95
Title: Conservative care and axial distraction therapy for the management of cervical and lumbar disc herniations and ligament laxity post motor vehicle collision.
Dr. Alex Jimenez, doctor of chiropractic, focuses on the diagnosis, treatment and prevention of a variety of injuries and conditions associated with the musculoskeletal and nervous systems, utilizing several chiropractic methods and techniques. The following procedures may be similar to his own but can differ according to the specific issue and complications by which the individual is diagnosed.
Abstract: This middle-aged female was injured in a vehicle collision causing her to sustain disc and additional ligament injuries in the cervical and lumbar spine. Diagnostic studies included physical examination, orthopedic and neurological testing, lumbar MRI, multiple cervical MRI�s, CRMA with motion cervical radiographs and EMG studies. Typically, conservative care is initiated prior to interventional procedures, and this case study seeks to explore the usage of passive therapy for mechanical spine pain and noted anatomic disc lesions after failure of interventional procedures. She reported both short term and long term success regarding pain reduction along with improvement in her activities of daily living after initiating conservative care, and continued to report further reductions in pain with periodic pain management using conservative care.
Introduction: The 49-year-old married female (Spanish speaking patient) reported that on March 4th, 2014 she was the seat-belted driver of a truck that was struck by a much larger fuel truck changing lines, hitting her vehicle at the front passenger side (far side, side impact). The force of the impact caused her truck to be lifted up and the right wheel popped off. Her head hit the window after impact and the spinal pain and complaints started approximately 24 hours later. Two days after the crash she went to the emergency department. Occupant pictures were taken describing an out of position occupant injury. She did not report any additional significant trauma after the collision.
Initial Diagnosis and Treatment for Disc Herniations
Prior to her evaluation at our clinic, she utilized multiple providers for diagnosis and treatment over the course of 11 months. She went to the emergency department, utilized 3 pain management medical doctors, neuropsychologist and a cognitive rehabilitation therapist. Imaging included radiographs and MRI of the right shoulder revealing rotator cuff tear; radiographs of the lumbar and thoracic spine, and left hand; CT of the head and cervical spine were performed; MRI cervical (3) and lumbar spine. Medications prescribed included Fentanyl, Percocet, Naprosyn, Cyclobenzaprine, Norco, Hydrocodone-acetaminophen, Soma, and Carisoprodol. Physical therapy was provided for spinal injuries and she did not respond to treatment. The neurosurgeon recommended epidural steroid injections and facet blocks. Cervical nerve blocks and cervical trigger point injections, cervical and lumbar epidural steroid injections (ESI), lateral epicondyle steroid injections were performed, none of which were palliative. Post-concussion disorder and PTSD with major depressive disorder were diagnosed.
On February 12th, 2015, she presented to our office with neck pain (average 6/10 VAS) that affected her vision, with paresthesia�s in both upper extremities radiating to the hands with numbness. She had low back pain (average 6/10 VAS), and she additionally reported paresthesia at the plantar surface of feet bilaterally. She had left elbow pain, right shoulder pain, knee pain, headaches and �anxiety� along with anterior sternal pain.
Her injuries were causing significant problems with her activities of daily living. Summarily she had increased pain with lifting, increased pain and restricted movement with bending, walking and carrying. She had been unable to perform any significant physical activity from the time of the crash in March 2014 until March 2015. Her right hand was always hurting and her forearms. She was not able to clean windows or do laundry, difficulty using stairs, problems with mopping, ironing and cleaning. She had to limit her walking and jogging primarily due to neck pain and right arm pain. She was not able to sit for long periods of time and sleeping was disrupted due to numbness in her hands. She was only able to walk on a treadmill for 10 minutes before having to stop due to pain, prior to the crash she would exercise for an hour.
Prior History: No significant prior musculoskeletal or contributory medical history was reported.
Research Study Conclusions
Clinical Findings (2/12/15): She had a height of 5�2�, measured weight of 127 lbs.
Visual analysis of the cervical spine revealed pain in multiple ranges of motion including flexion, extension, bilateral rotation and bilateral side bending. On extension pain was noted in the upper back, on rotation pain was noted in the posterior neck, and on lateral flexion pain was noted contralaterally.
Visual analysis of the lumbar spine revealed pain in the low back on all active ranges of motion, including flexion, extension and side bending, pain primarily at L5/S1.
Dual inclinometer testing was ordered based on visual active range of motion limitations with pain.
Sensory testing was performed of the extremities, C5-T1 and L4-S1. No neurological deficits other than right sided C5 hypoesthesia.
Foraminal compression test produced pain in the cervical spine. Foraminal distraction test caused an increase in pain in the neck. Jackson�s test on the right produced pain bilaterally in the neck. Straight leg raise bilaterally produced low back pain, double Straight leg raise produce pain at L5/S1 at 30 degrees.
Muscle testing of the upper extremities was tested at a 5/5 with the exception of deltoid bilaterally tested at a 4/5. The patient�s deep tendon reflexes of the upper and lower extremities were tested including Triceps, Biceps, Brachioradialis, Patella, Achilles: all were tested at 2+ bilaterally, equal and reactive. No evidence of clonus of the feet and Hoffman�s test was unremarkable.
C3-C5 right sided segmental dysfunction was noted on palpation. T5-T12 spinous process tenderness on palpation. Low back pain on palpation, particularly L5/S1.
Imaging Results
MRI Studies:
I reviewed the cervical MRI images taken May 2014 with the following conclusions (images attached):
Dramatic reversal of the normal cervical curvature, apex C5/6.
C5/6 herniation, indentation of the spinal cord anteriorly. High signal posterior on STIR.
Due to the angular kyphosis of the cervical spine and axial slices performed, C6/7 slices did not render a pure diagnostic image for disc disruption.
Fig. 1 (A) T2 Axial C5/6, 2 months post injury Fig. 1 (B) Sag T2 C5/6
I reviewed cervical MRI images taken September 17th, 2014 approximately 6-months post injury, and rendered the following conclusions:
Reversal of the normal cervical lordosis.
C5/C6 herniation (extrusion type) with indentation of spinal cord, appropriate CSF noted posteriorly.
I reviewed the cervical MRI dated October 24th, 2015 (images attached):
C4/5 herniation, extrusion type, left oriented into the lateral recess and neural canal causing moderate neural canal stenosis
Fig. 2 (A) 3D Axial C4/5, 19 months post injury Fig. 2 (B) Sag T2 C4/5
IMPRESSIONS: C4/5 herniation noted on 10/24/15 was not noted on prior images. The patient reported no additional injury or symptoms between MRI studies, so it is postulated that initial slices revealed a false negative; or due to the severity of abnormal cervical biomechanics, it is possible that the C4/5 disc herniated between the pre/post MRI�s with no significant increase in symptomatology. There was improvement at C5/6 related to disc abnormality and cord involvement (see below).
Fig. 3 (A) 3D Axial C5/6, 19 months post injuryFig. 3 (B) Sag T2 C5/6, 19 months post injury
The cervical flexion/extension images were digitized February 2016 and interpreted by myself and Robert Peyster MD, CAQ Neuroradiology, revealing a loss of Angular Motion Segment Integrity at intersegment C6/C7 measured at 19.7 degrees (maximum allowed 11 degrees), indicating a 25% whole person impairment according to the AMA Evaluation of Permanent Impairment Guidelines 5th edition1. CRMA provided from Spine Metrics, independent analysis.
Evidence of significant ligament injury causing functional subfailure was measured at C3/4 at 10.4 degrees and at C4/5 measuring 10.9 degrees regarding angular motion. Abnormal paradoxical translation motion measured at C6/7 and C7/T1.
Functional Testing:
EMG of the upper extremity revealed bilateral C6 radiculopathy, December 16th, 2015.
Range of Motion Cervical Dual Inclinometry:
Initial Max 4 months later % Improvement
Cervical Extension 44 42 -5%
Flexion 40 62 55%
Cervical Left 25 41 64%
Lateral flexion Right 12 26 117%
Cervical Left 46 59 28%
Rotation Right 43 73 70%
Conservative treatment rendered: A neurosurgical referral was made for assessment and surgical options. Conservative care was initiated despite failure of other medical procedures since there is �further evidence that chiropractic is an effective treatment for chronic whiplash symptoms�2-3. The patient was placed on an initial care plan of 2-3x/week for 5 months, with a gap in passive care for 1 month.
23 chiropractic visits. Instrument adjusting cervical spine was utilized with Arthrostim. Non-rotatory HVLA (high velocity low amplitude) spinal adjustments were performed thoracic and lumbar spine, applied A-P. No HVLA spinal adjustments to the cervical spine.
Prior to being placed at maximum medical improvement she had persistent low back symptoms, continued tingling in the fingertips and occasional neck pain at a 4/10, with her upper extremity paresthesia�s improved 50%. She continued with pain management chiropractic care after MMI, approximately 1 visit every 3-4 weeks with axial distraction to the cervical and lumbar spine, chiropractic adjustments as needed (PRN). 2 years/9 months post collision, and 1 year/9 months after initiating conservative care at our clinic, she reports only slight (1-2/10 VAS) spinal complaints with her primary concern being a torn rotator cuff injury from the crash that still requires surgical intervention. After initiating care at our clinic, no other interventional procedures were performed, although medication usage persisted. Due to improvement in symptoms and functional status, spinal surgery was not considered. She still utilizes Aleve PRN, 1-2 tablets. No significant active spinal rehabilitation was utilized. The patient was given at home active care consisting only of cervical and lumbar stretches, walking, and ice to affected areas.
Conclusion:While chiropractic care is safe even in the presence of herniations and radicular symptoms, �the likelihood of injury due to manipulation may be elevated in pathologically weakened tissues�4. Due to cord involvement, the provider decided to utilize low force procedures although HVLA spinal adjustments to the cervical spine could be considered safe due to lack of cord compression. HVLA spinal adjustments A-P were utilized in the lumbar and thoracic spine not only for short term pain relief but also as part of managing the chronic low back pain secondary to ligament/disc damage. While previously theorized to be only episodic, low back pain can be a lifelong condition requiring patients to seek ongoing care5. This care can be active, passive, pharmaceutical, interventional, or conservative in nature, but ongoing pain management therapy is often required for permanent ligament conditions. There is clear benefit to the patient population to be able to avoid surgical intervention due to risks, costs, ongoing prescription medication usage and adjacent level degeneration in the future6. Avoiding opioid usage is also a high priority in today�s environment.
Long term conservative care utilizing instrument spinal adjusting and targeted axial distraction therapy significantly reduced subjective reporting of pain, increased activities of daily living, and allowed the patient to avoid further spinal injections or surgical intervention. Considering that various interventional procedures failed prior to conservative care, it is important that providers work in an interdisciplinary environment such that the safest, and in this case the most effective, therapies are utilized first to reduce risk to the patient and maximize benefit and reduce costs.
In this case study, the patient utilized multiple pain management physicians, cervical nerve blocks and epidural steroid injections, and was not directed to conservative care for 11 months post injury. Utilizing chiropractic as conservative care would have enabled this patient to regain function and decrease pain while reducing costs and risks that are associated with medications and interventional procedures.
Competing Interest: There are no competing interests in the writing of this case report.
De-Identification: All of the patient�s data has been removed from this case.
The scope of our information is limited to chiropractic and spinal injuries and conditions. To discuss options on the subject matter, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Cocchiarella L., Anderson G. Guides to the Evaluation of Permanent Impairment, 5th Edition, Chicago IL, 2001 AMA Press.
Khan S, Cook J, Gargan M, Bannister G. A symptomatic classification of whiplash injury and the implications for treatment. Journal of Orthopaedic Medicine 1999; 21(1):22-25.
Whedon J, Mackenzie T, Phillips R, Lurie J. Risk of traumatic injury associated with chiropractic spinal manipulation in Medicare Part B beneficiaries aged 66-99 years. Spine, 2015; 40:264�270.
Hestbaek L, Munck A, Hartvigsen L, Jarbol DE, Sondergaard J, Kongsted A: Low back pain in primary care: a description of 1250 patients with low back pain in Danish general and chiropractic practices. Int J Family Med, 2014.
Faldini C., Leonetti D., Nanni M. et al: Cervical disc herniation and cervical spondylosis surgically treated by Cloward procedure: a 10-year-minimum follow-up study. Journal of Orthopaedics and Traumatology, June 2010.Volume 11, Issue 2,pp 99-103.
Additional Topics: Recovering from Auto Injuries
After being involved in an automobile accident, many victims frequently report neck or back pain due to damage, injury or aggravated conditions resulting from the incident. There’s a variety of treatments available to treat some of the most common auto injuries, including alternative treatment options. Conservative care, for instance, is a treatment approach which doesn’t involve surgical interventions. Chiropractic care is a safe and effective treatment options which focuses on naturally restoring the original dignity of the spine after an individual suffered an automobile accident injury.
Scoliosis is a disorder that causes an abnormal curve of the spine, or backbone. The backbone has regular curves when searching from the side, when looking from the front but nevertheless, it should appear straight. People with scoliosis create extra curves to both sides of the body, and also the bones of the spine twist on each other, forming a “C” or an “S” shape in the backbone.
Kyphosis is a curve in the spine seen in the side where the spine is bent. There exists a regular kyphosis in the middle (thoracic) spine. Lordosis is a curve observed from the side in which the spine is bent backward. There is a typical lordosis in the upper (cervical) spine along with the lower (lumbar) spine.
What type of healthcare professionals can treat scoliosis?
A person’s primary-care or pediatric doctor may first notice the problem and consults an orthopedic surgeon or neurosurgeon who specializes in spine surgery. Furthermore, a rehabilitation specialist or a physical therapist may be consulted. Some individuals might need a neurologist or an occupational therapist as part of the treatment team.
Most kids with scoliosis have curves that are gentle and probably will not require treatment with surgery or a brace. Children who have mild scoliosis might require check ups every four to to 6 months to determine if there there were modifications in the curvature of the spines.
Types of Treatments for Scoliosis
The decision to begin treatment is usually created on an individual basis while there are recommendations for gentle, moderate and severe curves.
An abnormality causes scoliosis else where in the human anatomy. This type of scoliosis is handled by treating that abnormality, like a difference in leg length. A little wedge may be put in the shoe to aid out the leg length and stop the spine from curving. There’s no direct remedy of the spine since the spine is typical in these people.
Neuromuscular scoliosis is triggered by an irregular advancement of the bones of the spine. These type s of scoliosis have the possibility for getting worse. Observation and bracing don’t normally perform well for these people. The bulk of these people will eventually need surgery to cease the curve from obtaining worse.
Treatment of idiopathic scoliosis is based on the age when it develops.
Oftentimes, infantile idiopathic scoliosis will enhance without any treatment. X-rays measurements and can be acquired compared on future visits to determine if the curve is getting worse. Bracing isn’t typically effective in these folks.
Juvenile idiopathic scoliosis has the highest-risk for getting worse of all the idiopathic type s of scoliosis. When the curve isn’t very severe bracing can be tried. The aim is to prevent the curve from getting worse before the person stops growing. They have a great deal of time left to grow, plus because these people are started early in by the curve, there exists a greater possibility for needing surgery or more aggressive treatment.
Idiopathic scoliosis is the most frequent type of scoliosis. When first identified if the curve is small, it can be observed and followed with program x rays and measurements. In case the curve or Cobb angle stays below about 20-25 levels (Cobb approach or angle, is a measurement of the diploma of curvature), no other treatment is needed. The patient might reunite to view the doctor every three to four months to test for almost any worsening of the curve. Additional X -rays could possibly be repeated each yr to acquire measurements and check for progression of the curve. Individual is still-growing, the in the event the curve is between 25-40 degrees and a brace may be recommended. Bracing isn’t suggested for folks that have finished growing. If the curve is better than 40 degrees, then surgery may be recommended.
Scoliosis isn’t an average of connected with again pain as explained above. However, in some patients with back pain, the symptoms can be lessened with physical treatment, massage, stretches, and workouts, including yoga (but refraining from twisting pressures on the backbone). These actions can assist to reinforce the muscles of the back. Medical remedy is mostly constrained to discomfort relievers like nonsteroidal anti-inflammatory drugs (NSAIDs) and anti-inflammatory injections. These remedies certainly will not be able to to improve the abnormal curve, a cure for scoliosis and aren’t, nevertheless.
Are there home remedies for scoliosis?
You will find numerous home remedies which have been described for scoliosis; some involve herbal herbal products, diet therapy, massage, physical treatment, stretches, particular exercises, and nutritional supplements like L-selenomethionine. A mattress which is composed of latex, memory foam, or cool gel (latex mattress infused with gel retains less heat than latex alone, also termed gel memory foam) and is adjustable (peak of head and foot of bed could be adjusted) is advised by some clinicians and patients. Patients are recommended to discuss these treatments, particularly exercises, making use of their doctor before starting any home solutions.
How to Treat Scoliosis (Video)
The scope of our information is limited to chiropractic and spinal injuries and conditions. To discuss options on the subject matter, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
By Dr. Alex Jimenez
Additional Topics: Scoliosis Pain and Chiropractic
According to recent research studies, chiropractic care and exercise can substantially help correct scoliosis. Scoliosis is a well-known type of spinal misalignment, or subluxation, characterized by the abnormal, lateral curvature of the spine. While there are two different types of scoliosis, chiropractic treatment techniques, including spinal adjustments and manual manipulations, are safe and effective alternative treatment measures which have been demonstrated to help correct the curve of the spine, restoring the original function of the spine.
Corticosteroid injections are widely used to aid injury rehabilitation but we still understand very little about their mechanism. Chiropractor, Dr. Alexander Jimenez examines the current thinking and discusses how this potentially impacts treatment options…
Corticosteroids are used for their anti- inflammatory and pain reducing effects. They can also reduce muscle spasms and influence local tissue metabolism for faster healing. Injection therapy is now widely available from specially trained general practitioners, physiotherapists and consultants, and can be offered for a wide range of clinical conditions. Because of this wide availability and the growing desire for injury �quick fixes�, it is important that they are used correctly and the full consequences are understood prior to injection.
The main indications for corticosteroid injection use are(1):
Acute and chronic bursitis
Acute capsulitis (tight joint capsule)
Chronic tendinopathy
Inflammatory arthritis
Chronic ligament sprains
Steroid injections of hydrocortisone are a synthetic form of a naturally produced hormone within the body called cortisol. Cortisol is important for regulating carbohydrate, protein and fat metabolism. It is also involved in metabolic responses in times of stress such as emotional problems, trauma, and infection, where levels of inflammation are elevated. Steroid injections work on the immune system by blocking the production of chemicals that activate the inflammatory reactions, therefore reducing inflammation and pain within injury locations.
Steroid injections can be directed into a joint, muscle, tendon, bursa, or a space around these structures. Figure one shows an injection aiming for the bursa within the shoulder joint. This is often a source of irritation and causes impingement when the shoulder moves. The location will depend on what tissue is causing the symptoms. When injected locally to the specific structure, the effects are primarily only produced there and widespread detrimental effects are minimal(2).
When To Use
Identifying the correct time to issue a steroid injection following injury requires careful consideration. The mechanical status of the tissue is important because this will vary depending on the stage of healing and therefore the effectiveness of the injection will also vary.
Figure 2 shows the different stages that a tendon can progress through following trauma. This is equally applicable to muscles, fascia, and other tissues too. A reactive tendinopathy (tendon degeneration/damage) will present shortly after injury/trauma/stress/ excessive loading, and will display acute swelling and inflammation. The initial care should be 2-3 weeks of rest, analgesia, ice application and gentle physiotherapy. If symptoms have not significantly improved after this period, then the introduction of a corticosteroid injection is appropriate for providing symptomatic relief by reducing inflammation and eliminating the occurrence of further damage because mechanical normality will be quickly restored(3).
If the tendon continues to be placed under excessive load, swelling and inflammation will remain or escalate, and continuous loading will eventually cause micro trauma and further tendon degeneration. If this is prolonged for long enough then the tendon will fail structurally(4).
The use of corticosteroids here is questionable because there is unlikely to be inflammation present to combat, and the injection alone will not repair this physical damage. Injection treatment at this stage may only be indicated if the athlete is in too much pain to participate in any significant rehabilitation. The symptomatic relief the injection may bring at this point could allow exercises to be performed, which can help accelerate the repair of physical damage. Ultimately, physical exercise is a key component in recovery following corticosteroid injections.
Impact On Treatment & Performance
For the best outcome, post-injection care � particularly with respect to timing � is important. Relative rest is recommended for the first two weeks post-injection. During this first two weeks the tissues are weakened and their failing strengths are reduced by up to 35%; this means the strength at which they would fail (tear) is much lower and more susceptible to rupturing(8).
By six weeks the bio-mechanical integrity is reestablished and the tissues are deemed �normal� again, with increased strength and function(8). Benefits are optimal within this 6-week period and often short-lived; therefore the athlete must comply strictly to a rehabilitation program to gradually load the tissues and ensure the correct load is applied during this period(9). Research has also shown that at twelve weeks post-injection�there is little significance in the difference between those who received a steroid injection and those who focused on exercise therapy alone, suggesting this early symptom relief should be used to enhance rehabilitation(10). If loading is accelerated in the early stages the athlete risks re-aggravation of the injury, delayed healing, further weakening and thus rupture.
If this rehabilitation protocol is followed, the athlete will likely maximise their outcome. They can return to training, and with the severity of their symptoms reduced, this can allow progression to the next stage of training. If the injury is severe enough that surgery may be considered within three months, a steroid injection should not be performed as this can affect the success of the surgery.
Evidence For Sports Injuries
Here we will consider some of the more common sports injuries and summarize what the current evidence regarding steroid injection suggests.
Shoulders
Injection therapy is indicated in subacromial impingement or bursitis (as in Figure 3 below) to allow the inflammation reduction and restoration of normal movement. It is also indicated in rotator cuff pathology where the tendons are again inflamed, but also damaged and unable to undergo exercise therapy. Shoulder injections are shown to produce early improvements in pain and function with a high level of patient satisfaction(10). Symptoms are similar to those without injection at 12 weeks however, suggesting physical therapy is also important(10). Injection is not appropriate for shoulder instability as it can make the joint more unstable. Exercise therapy alone is recommended for this condition.
Hip Pain
Two soft tissue conditions that benefit the most from injection are piriformis syndrome (muscle tightness running deep to the buttock muscles), and greater trochanter pain syndrome (affecting the bursa surrounding the hip joint, or the gluteal tendons that are all in close proximity to the lateral hip)(11). Injection success is reported to be approximately 60-100% if the diagnosis is accurate and the correct protocols are adhered to(12). Other regions such as the adductor and hamstring tendons can also be treated for tendinitis or groin pains. However, injections into these�regions are deep and painful, and require extensive rest afterwards.
Knee Pain
Knee joint injections for arthritic conditions are most commonly used, with injection to the soft tissues much less common due to the complex diagnosis, and risk of detrimental side effects. The various bursa around the knee, the iliotibial band, and quadriceps and patellar tendons have all been shown to significantly benefit in the short-term; however accurate location is essential to ensure the tendon itself is not penetrated � only the surrounding regions(13).
Plantar Fasciitis
This is a painful injection to receive, and pain can last for well over one week post- injection (see figure 4). There is an approximate 2-4% risk that the fascia can rupture. In addition, there�s a risk of local nerve damage and wasting of the fat pad within the heel. Studies have demonstrated that at 4 weeks post-injection pain and thickness of the injured plantar fascia are reduced and these benefits remain three months later, suggesting a good outcome if the risks are avoided(14).
When it comes to scoliosis treatment, most healthcare professionals follow a specific treatment plan, categorized by separate phases of treatment. The following are listed and described in detail below.
PHASE I – Pain Alleviation
While not all scoliosis sufferers experience pain or discomfort, a percentage do. In these patients the provision of treatment does help with individual compliance with prevention or corrective exercises.
Pain relief could be achieved through many different techniques:
electrotherapy modalities (ultrasound, TENs),
acupuncture,
release of tight muscles, and
supportive postural taping.
In this stage your healthcare specialist or professional, may also introduce mild exercises while your pain settles enhance your posture as well as to maintain in your backbone.
PHASE II – Rectifying Imbalances
Your healthcare physician will turn their attention to optimizing the strength and versatility of your muscles on either side of the scoliosis, as your pain and inflammation settles. They’ll also contain adjacent areas including the shoulder and hip area that could impact upon your alignment.
The principal remedy includes restoring regular spine array of motion, muscle length and tension through resting, muscle power, endurance and core balance. Taping methods could be employed until flexibility and adequate strength in the specific muscles has been achieved.
PHASE III – Restoring Complete Function
This scoliosis treatment phase is geared towards ensuring that you simply resume most of your typical daily activities, including sports and outdoor recreation without re-aggravation of your signs.
Depending on sport your chosen work or activities of everyday living living, your healthcare specialist will aim to restore your function to safely enable you to return to your activities.
Everyone has various needs because of their body that’ll determine specific treatment goals you require to achieve to what. For some it be simply to walk around the block. Others might desire to participate in a marathon. Your doctor will tailor your back rehabilitation to help attain your own practical goals.
PHASE IV – Preventing a Recurrence
Since scoliosis in several cases is a structural change in the skeleton, continuing self management is paramount to preventing re-exacerbation of your symptoms. This may entail a routine of a few key exercises to sustain versatility ideal strength, core balance and postural support. Your healthcare physician will assist you in determining which are the best exercises to carry on in the long-term.
In addition to your muscle manage, if you’d benefit from any exercises for some foot orthotics or adjacent muscles to address for bio-mechanical faults, your doctor will evaluate you hip bio-mechanics and decide. Some scoliosis results from an unequal leg size, which your therapist may possibly address with a heel rise, shoe rise or a built-up foot orthotic.
Rectifying these deficits and learning self management methods is crucial to maintaining continuing and perform participation in your daily and sports activities actions. You will be guided by your physiotherapist.
Treatment Result Expectations
You are able to expect a full return to normal daily, sporting and recreational activities in the event you have mild to moderate scoliosis. Your return to function is more promising if you are diagnosed and handled early.
In order to halt curve progression, individuals with more moderate to serious spinal curvatures may possibly need to be fitted for orthopedic braces. In certain severe circumstances throughout adolescence, surgery is indicated. Both of these latter two pathways are over seen by an orthopedic expert who might require monitoring the progress of the curve with program x-rays.
How to Treat Scoliosis (Video)
The scope of our information is limited to chiropractic and spinal injuries and conditions. To discuss options on the subject matter, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
By Dr. Alex Jimenez
Additional Topics: Scoliosis Pain and Chiropractic
According to recent research studies, chiropractic care and exercise can substantially help correct scoliosis. Scoliosis is a well-known type of spinal misalignment, or subluxation, characterized by the abnormal, lateral curvature of the spine. While there are two different types of scoliosis, chiropractic treatment techniques, including spinal adjustments and manual manipulations, are safe and effective alternative treatment measures which have been demonstrated to help correct the curve of the spine, restoring the original function of the spine.
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Hip Pain
