Hamstring muscle injuries are common, especially in athletes and individuals with physically demanding jobs. Is there a better chance of full recovery with surgical repair and post-op rehabilitation?
Hamstring Muscle Tear
Most often, hamstring muscle injuries are partial tears of the muscle. These types of injuries are muscle strains that occur when the muscle fibers are stretched beyond their normal limits. Complete tears of the hamstring muscle are unusual, but they do occur in both athletes and non-athletes. Determining the optimal treatment plan depends on:
The severity of the tendon tear
The expectations of the injured individual.
Incomplete tears are when the hamstring muscle is stretched too far, but not completely detached.
Complete tears usually occur at the top of the muscle where the tendon tears away from the pelvis.
A complete tear usually occurs when there is a sudden flexion of the hip and extension of the knee joint – when the muscle contracts in this position, it gets stretched beyond its limits.
Basic hamstring strains can be treated with simple steps – rest, ice, anti-inflammatory medications, and conservative therapies.
Symptoms
Symptoms of a hamstring muscle strain can include pain, bruising, swelling, and movement difficulty. (American Academy of Orthopaedic Surgeons. 2021) Individuals who sustain this injury typically experience sudden sharp pain. Signs of a tear can include:
Sharp pain where the buttock and thigh meet.
Difficulty walking.
Sitting can be difficult as the edge of a chair can place pressure directly on the injury.
Spasms and cramping sensations in the back of the thigh.
Weakness in the leg, specifically when bending the knee or lifting the leg behind the body.
Numbness or burning sensations as a result of sciatic nerve irritation.
Swelling and bruising in the back of the thigh – over time it can travel down to the back of the knee and calf and possibly into the foot.
With a complete hamstring tear, there is usually significant swelling and bruising that develops in the back of the thigh.
Diagnosis
The symptoms can be difficult to spot in the early stages which is why X-rays of the hip or thigh are usually obtained.
In some situations, a fragment of bone can get pulled off the pelvis along with the hamstring muscle attachment. MRI testing can be performed to evaluate the attachment and can define critical features of a complete hamstring muscle tear, including: (American Academy of Orthopaedic Surgeons. 2021)
The number of tendons involved.
Complete versus incomplete tearing.
The amount of retraction – the amount the tendons have pulled back.
This will guide the development of treatment.
Treatment
The treatment of a complete tear will depend on different factors. The other variable is the patient and their expectations.
Treatment is more aggressive in younger individuals like high-level athletes.
Treatment is less aggressive in middle-aged individuals.
Often a single tendon tear can be treated non-surgically.
When one tendon is involved, it is typically not pulled very far from its normal attachment and will develop scar tissue in a positive position.
Conversely, when three tendons have been torn, they usually pull more than a few centimeters away from the bone. These cases have better results with surgical repair. (UW Health. 2017)
Surgeons will use patient characteristics – high-level athletes or less physically active individuals – to guide treatment recommendations.
Rehabilitation
Rehabilitation following surgery can take 3-6 months or longer.
The first six weeks limit weight-bearing with the use of crutches.
Patients may be recommended to wear a brace to reduce tension on the repaired hamstring tendons.
Strengthening does not begin until three months post-op, and even light activities are usually delayed. (UW Health. 2017)
Because this injury can have a long recovery time, some individuals may choose nonsurgical treatment.
Sometimes these individuals experience symptoms of discomfort from sitting and may exhibit long-term weakness of the hamstring muscle.
Full recovery from a complete hamstring muscle injury takes time. Studies have shown high-level athletes are able to resume competitive sports after the repair and rehabilitation of an acute hamstring muscle injury. (Samuel K. Chu, Monica E. Rho. 2016)
Delaying surgical treatment may not always lead to optimal results.
When the tendon is torn away from its normal attachment, it begins to scar around the surrounding soft tissues.
When there is a delay of more than a few weeks following the initial injury, regaining the full length of the tendon and muscle can be challenging.
This could delay the rehabilitation process and may limit the potential for full recovery. (Ho Yoon Kwak, et al., 2011)
With severe injuries, there is a better chance of full recovery with surgical repair but could involve a long recovery and commitment to a post-op rehabilitation plan.
Chu, S. K., & Rho, M. E. (2016). Hamstring Injuries in the Athlete: Diagnosis, Treatment, and Return to Play. Current sports medicine reports, 15(3), 184–190. doi.org/10.1249/JSR.0000000000000264
Kwak, H. Y., Bae, S. W., Choi, Y. S., & Jang, M. S. (2011). Early surgical repair of acute complete rupture of the proximal hamstring tendons. Clinics in orthopedic surgery, 3(3), 249–253. doi.org/10.4055/cios.2011.3.3.249
The hamstring muscles attach, through a tendon called the proximal hamstring tendon, to the ischial tuberosity, the bones used to sit deep in the buttock muscles. When the tendon is subjected to overuse/repetitive stresses and strains, the internal structure can become compromised, leading to weakness and pain symptoms. This is known as proximal hamstring tendinopathy. Tendinopathy is an overuse injury where the tendon is repeatedly strained until microscopic tears form. It is common in athletes that do a lot of running but also in individuals that sit for prolonged periods. If left untreated, high hamstring tendinopathy can lead to progressive degeneration of the tissues, leading to chronic weakness, pain, and dysfunction.
High Hamstring Tendinopathy
The hamstrings are a powerful muscle group that extends the hip and flexes the knee. They experience stress and pressure during activity and inactivity/sitting and are susceptible to strain injuries. Tendons attach muscle to bone and are designed to take compressive and tensile weight/loads that stretch or flex. A tendon is made up of fibrous tissue containing organized type 1 collagen. Tendons receive blood; however, the supply is less where the tendon attaches to the bone and is commonly where tendinopathy occurs.
Injury
A hamstring injury involves the bruising, irritation, or tearing of the hamstring tendon or muscle tissue. Severity can range from:
Microtears that cause stiffness and pain symptoms but heal fast on their own.
Severe ruptures that cause debilitating pain, dysfunction and require medical intervention.
The tendon attaches to the ischial tuberosity or sitting buttock bone. Tendons can have a spasm-like reaction to sudden or quick shift changes. A sudden change can cause adverse changes to the tendon. Too much load on the tendon beyond its ability to recover can cause the structure to change and the collagen to break down/tear like a rope tearing and unraveling. High hamstring tendinopathy happens around the hip area and presents as buttock or upper thigh pain. Individuals report deep, dull, radiating buttock pain during walking, running, and prolonged sitting or driving. Sometimes the sciatic nerve can become irritated or entrapped by an affected tendon’s scar tissue, causing sciatica-like symptoms.
Stages of Tendon Pathology
Reactive Phase
Caused by an acute overload of physical activity or inactivity.
The tendon will thicken temporarily to decrease the stress; however, there may be no inflammation.
The tendon can return to normal if the load is reduced or sufficient time for recovery and repair is allowed.
Disrepair
Chronically overloaded.
Unsuccessful healing.
More negative tendon changes occur.
Reversibility is possible with load management and targeted exercises to stimulate the tendon and surrounding tissues.
Degenerative
Continual progression of adverse tendon changes.
More common in older individuals.
Continue load management and strength training to maximize the tendon’s tolerance.
Chiropractic Treatment
A chiropractic therapy team will develop a personalized treatment program to improve tendon structure and strengthen the hamstrings, gluteal, and side abdominal muscles. They will begin with tendon symptom-relieving massage to loosen the muscles and get the blood circulating, MET-targeted stretches to lengthen the muscles, and spinal and pelvic adjustments to realign the body.
Sciatica Explained
References
Buckley, Mark R et al. “Distributions of types I, II and III collagen by region in the human supraspinatus tendon.” Connective tissue research vol. 54,6 (2013): 374-9. doi:10.3109/03008207.2013.847096
Lempainen, Lasse, et al. “Expert opinion: diagnosis and treatment of proximal hamstring tendinopathy.” Muscles, ligaments, and tendons journal vol. 5,1 23-8. 27 Mar. 2015
Mattiussi, Gabriele, and Carlos Moreno. “Treatment of proximal hamstring tendinopathy-related sciatic nerve entrapment: presentation of an ultrasound-guided “Intratissue Percutaneous Electrolysis” application.” Muscles, ligaments, and tendons journal vol. 6,2 248-252. 17 Sep. 2016, doi:10.11138/mltj/2016.6.2.248
Ono, T et al. “Estimation of tensile force in the hamstring muscles during overground sprinting.” International Journal of sports medicine vol. 36,2 (2015): 163-8. doi:10.1055/s-0034-1385865
White, Kristin E. “High hamstring tendinopathy in 3 female long-distance runners.” Journal of chiropractic medicine vol. 10,2 (2011): 93-9. doi:10.1016/j.jcm.2010.10.005
Wilson, Thomas J et al. “Sciatic Nerve Injury After Proximal Hamstring Avulsion and Repair.” Orthopedic Journal of sports medicine vol. 5,7 2325967117713685. 3 Jul. 2017, doi:10.1177/2325967117713685
Hamstring syndrome is a condition where the sciatic nerve gets pinched between the hamstring muscles and the pelvic bone or by the tissue bands that connect the hamstring muscles causing compression on and around the nerve. It is seen in individuals that play sports that involve running, kicking, or jumping, in middle-aged individuals engaged in daily activities that have suffered falls, and in individuals that sit for many hours. Chiropractic care, massage, and decompression therapy can relieve the symptoms, release the trapped nerve, relax and stretch the muscles, and restore function.
Hamstring Muscles Trapped Sciatic Nerve
Three muscles make up the hamstrings in the back of the thigh. The sciatic nerve runs from the low back down the leg into the foot. A trapped sciatic nerve can cause various symptoms and sensations in the back of the leg, hip, buttock, and foot. It may hurt to sit down or stretch the legs out, and there is usually tightness in and/or around the buttock and back of the leg. The symptoms typically recede when lying on your back.
Cause
Regular wear and tear on the back muscles and hamstrings can contribute to the condition.
Often the sciatic nerve and/or the sheath surrounding the sciatic nerve gets trapped and irritated as it travels around the ischial tuberosity. The ischial tuberosities are known as the sit bones.
The area where the sciatic nerve runs down the back of the leg can become narrowed, leading to nerve irritation and stinging, numbing, and tingling sensations.
The injury often happens during sudden, quick, forceful movements that overstretch the tendons and/or muscles but can also happen during slow movements.
Movement agitates the pulling and rubbing of the nerve on the muscles.
A non-painful pull or pop of the hamstrings can cause the muscles to spasm and wrap around the nerve.
Symptoms
Symptoms usually include the following:
Leg pain that worsens when sitting.
Intense electrical shooting pain that makes it hard to stand or move.
Difficulties moving the leg or foot.
Numbness and weakness in and around the leg.
Tingling or burning sensations running down the leg.
Persistent pain on one side of the lower back.
Chiropractic Care
Chiropractic treatment can relieve the symptoms and release the trapped nerve. Treatment includes:
Accurate Diagnosis – A chiropractor will examine and review physical activity, work, and medical history.
Ice and Heat therapies will stop the swelling and increase blood flow.
Massage therapy relaxes the muscles and increases circulation.
Decompression therapy incrementally and gently stretches the body.
Chiropractic adjustments realign and reset the body.
Targeted stretches and exercises will keep the muscles loose and increase strength.
Nutritional recommendations will help reduce inflammation and prevent flare-ups.
Hamstrings and Sciatic Nerve Relationship
References
Lohrer, Heinz, et al. “Nerve entrapment after a hamstring injury.” Clinical journal of sports medicine: official journal of the Canadian Academy of Sports Medicine vol. 22,5 (2012): 443-5. doi:10.1097/JSM.0b013e318257d76c
Mattiussi, Gabriele, and Carlos Moreno. “Treatment of proximal hamstring tendinopathy-related sciatic nerve entrapment: presentation of an ultrasound-guided “Intratissue Percutaneous Electrolysis” application.” Muscles, ligaments and tendons journal vol. 6,2 248-252. 17 Sep. 2016, doi:10.11138/mltj/2016.6.2.248
McGregor, Catriona, et al. “Traumatic and overuse injuries of the ischial origin of the hamstrings.” Disability and rehabilitation vol. 30,20-22 (2008): 1597-601. doi:10.1080/09638280701786138
Saikku, Kari, et al. “Entrapment of the proximal sciatic nerve by the hamstring tendons.” Acta orthopaedica Belgica vol. 76,3 (2010): 321-4.
The hamstring muscles are three muscles in the back of the thigh. The sciatic nerve goes through or around and down the legs into the feet. Hamstring syndrome is a condition where injury or spasm apply pressure compressing the sciatic nerve.
The nerve can become pinched between the hamstring muscles and the pelvic bone or the band of tissue that connects the hamstring muscles.
This can cause discomfort, tingling, numbness, and pain down the back of the leg, hip, buttock, and into the foot.
Pain can present when sitting down or stretching the hamstrings.
Pain reduces when lying flat on the back.
Hamstring syndrome
This condition could be the result of wearing and tearing to the back muscles and hamstring muscles. It is often seen in individuals that play sports involving running, kicking, and/or jumping. But it can happen to anyone from some awkward leg motion causing the muscles to spasm that can twist around the sciatic nerve or pull on it, causing various symptoms. A doctor or chiropractor will diagnose the condition by examining the symptoms, physical activities, and leg. Most individuals diagnosed with hamstring syndrome report discomfort or pain where they sit down. The pain gradually worsens when performing physical activities, regularly sitting, and when flexing the knee. Hamstring syndrome usually gets better within a few weeks with proper rest and home care. A doctor or chiropractor will recommend exercises and stretches to strengthen the muscles.
Home care
Ask the doctor or chiropractor about taking over-the-counter pain medication:
Acetaminophen – Tylenol
Ibuprofen – Advil, Motrin
Naproxen – Aleve
Read and follow all label instructions.
Use an ice pack on the pain area for 10 to 20 minutes at a time.
Try to do this every 1 to 2 hours for 3 days or until the swelling goes down.
After 2 or 3 days, if the swelling is gone, apply heat.
Use a warm water bottle, heating pad, or warm cloth over the area.
Avoid sitting if possible, unless it feels better than standing.
Take short walks to keep the muscles stretched.
Don’t do anything that causes symptoms to worsen.
Return to normal physical activities slowly.
If symptoms do not improve, then contact a doctor or chiropractor.
Caffeine falls under stimulants, or substances that excite the systems throughout the body.
Ingesting caffeine can cause the body to experience increased excitement, especially in the cardiovascular system.
This excitement causes the heart rate and blood pressure to rise
Then it lowers back down to baseline levels for most healthy individuals.
It is recommended to drink coffee in moderation, safe for individuals with pre-existing cardiovascular conditions.
References
de Ridder, Roel et al. “Neurodynamic sliders promote flexibility in tight hamstring syndrome.” European journal of sports science vol. 20,7 (2020): 973-980. doi:10.1080/17461391.2019.1675770
Matsuda, Dean K. “Editorial Commentary: Proximal Hamstring Syndrome: Another Pain in the Buttock.” Arthroscopy: the journal of arthroscopic & related surgery: official publication of the Arthroscopy Association of North America and the International Arthroscopy Association vol. 34,1 (2018): 122-125. doi:10.1016/j.arthro.2017.08.260
Park, Jung Wee et al. “Deep gluteal syndrome as a cause of posterior hip pain and sciatica-like pain.” The bone & joint journal vol. 102-B,5 (2020): 556-567. doi:10.1302/0301-620X.102B5.BJJ-2019-1212.R1
Tight and sore hamstrings commonly occur during workout and exercise, but can just as easily result from a fall or other accident. Individuals usually experience pain located at the back of the thigh with associated weakness along with the feeling of the muscles becoming tighter and a consistent soreness. Consistent tightness in the back of the legs is not only uncomfortable but can also make movement difficult.
Many individuals stretch every day, do yoga, etc trying to relieve hamstring tension, with short-term relief only to have the tightness return. This is frustrating but more importantly, indicates that the problem might not have to do with the muscle�s length. There could be an underlying issue that needs to be identified and addressed. A chiropractic approach will diagnose and treat the root of the pain, not just the symptoms.
Hamstring/s Tightness
The hamstring is not a single string. It is a set of three muscles that run along the back of the thigh. The muscles allow for the bending of the leg at the knee. With a hamstring strain, one or more of these muscles can become overloaded and can start to tear. Strains often happen during activities that involve running, jumping, and/or sudden stopping and starting. This is where stretching doesn’t help, however, a chiropractic adjustment can help.
Weak Muscle Compensation
One possible cause for the tightness has to do with various related muscles and not the hamstrings themselves. Muscles that typically stabilize and facilitate movement could be too weak or are not functioning properly. What usually happens is that the muscles that are active have to work harder to compensate for the others that are not working/functioning properly.
The tension in the hamstrings can be alleviated through chiropractic exercises/stretches that activate the stabilizing muscles and get the circulation moving to promote strength and take the pressure off the hamstrings.
These muscle weaknesses can be caused by spinal misalignments that pull the body in an awkward fashion, throwing the body’s balance off. Each condition feeds the other as the hamstrings have to work harder, the body leans to the side that doesn’t cause pain, causing the spine to shift out of alignment and so begins the awkward body shifting to avoid the pain cycle. A chiropractic adjustment will restore balance and stability to the entire body.
A Pelvic Tilt
Pelvic tilt could be a contributing factor for tightness and soreness. This comes from:
Poor posture
Lack of physical activity
Weight gain
These factors can cause the pelvis to shift forward ever so slightly. But just that slight tilting could be pulling on the hamstrings. In order to rectify the tilt, exercise is recommended, and chiropractic manipulation to realign any spinal shifting.
Sciatic Irritation
Another issue is sciatic nerve irritation that could mimic tightness in the muscles. The sciatic nerve runs down the back of the leg and the irritation could make the hamstring appear to be tight. This is where stretching the hamstrings can worsen the condition by irritating the sciatic nerve, causing inflammation.
The sciatic nerve could also be experiencing irritation from spinal misalignment. A vertebral disc could be bulging or herniated. This could inflame the nerve root. A bone spur or inflamed joint could be impinging/compressing on the nerve root exits.
A chiropractic treatment plan will relieve the tension being placed on the nerve and allow for proper blood circulation and transmission of signals without interruptions. Talk to a chiropractor about an examination to identify the exact root causing the discomfort.
Advanced Chiropractic Treatment
Dr. Alex Jimenez�s Blog Post Disclaimer
The scope of our information is limited to chiropractic, musculoskeletal, physical medicines, wellness, and sensitive health issues and/or functional medicine articles, topics, and discussions. We use functional health & wellness protocols to treat and support care for injuries or disorders of the musculoskeletal system. Our posts, topics, subjects, and insights cover clinical matters, issues, and topics that relate and support directly or indirectly our clinical scope of practice.*
Our office has made a reasonable attempt to provide supportive citations and has identified the relevant research study or studies supporting our posts. We also make copies of supporting research studies available to the board and or the public upon request. We understand that we cover matters that require an additional explanation as to how it may assist in a particular care plan or treatment protocol; therefore, to further discuss the subject matter above, please feel free to ask Dr. Alex Jimenez or contact us at 915-850-0900. The provider(s) Licensed in Texas& New Mexico*
References
Hoskins, Wayne, and Henry Pollard. �Hamstring injury management–Part 2: Treatment.��Manual therapy�vol. 10,3 (2005): 180-90. doi:10.1016/j.math.2005.05.001
Athletes regularly participate in rigorous training and competition. While they routinely stretch and exercise accordingly to prevent experiencing injuries while performing their specific sport of physical activity, they constant and repetitive movements of the body can often cause damage or injury, even developing an aggravating condition regardless of the process they follow to avoid harm. Hamstring injuries are recognized as frequent injuries among athletes, particularly due to the use of the legs in a majority of sports or physical activities.
Hamstring injuries are significantly common in athletes and the risk of re-injury is reasonably frequent. Researchers found that in elite-level Australian football, hamstring injuries were the most prevalent type of sports injury which required time away from competition. Researchers also determined that low-grade muscle strains occur most frequently, followed by more significant myotendinous junction tears. Fortunately, these have shown a positive response to conservative rehabilitation. Hamstring avulsions are considerably rare, same as complete ruptures originating at the hamstring. Such type of sports injuries can be debilitating.
Muscle ruptures in the form of hamstring avulsions have been reported more frequently in the younger population due to an immature epiphyseal growth plate found on the ischial tuberosity in older children and adolescents. Hamstring avulsions in adults with fully fused ischial tuberosities are contributed to be ruptures of the proximal hamstring tendon or complete avulsion fractures of the ischial tuberosity.
An immediate diagnosis following proper treatment methods for ischial tuberosity avulsions or tendon ruptures is essential at this point because several individuals whom were treated non-operatively for hamstring ruptures experienced residual loss of power. Further complications for hamstring avulsions include pain, weakness, cramping during locomotion and pain while sitting. As with the majority of tendon avulsions, treating the injury as soon as possible can present better outcomes than delaying treatment. According to research, receiving treatment within four weeks of injury resulted in better recovery outcomes as compared to those which received treatment after four weeks of injury.
Anatomy of the Hamstring & its Function
The hamstring muscles consist of the biceps femoris, both the long head and the short head, the semitendinosus and the semimembranosus. All of these muscles, excluding the biceps short head, attach onto the ischial tuberosity. The short head biceps begin along the femur simultaneously with the linea aspera.
At the proximal origin, the long head of the biceps and the semitendinosus form a combine to create the tendon which attaches to the ischial tuberosity and the semimembranosus.
When an individual undergoes puberty, a secondary ossification center at the ischial tuberosity develops without fusing until the individual�s late teens or early twenties. Within the period of time between the fusion of the apophysis, an increased force traction may cause a hamstring avulsion along the apophysis as a result of a weakened connection between the bone and the muscle. After the bones begin to mature, injuries at the myotendinous junction become more common.
The structures of the hamstring greatly associate with the passage of the sciatic nerve along the upper posterior thigh. A severe injury to the muscle that causes a large hematoma may develop adhesions in and around the sciatic nerve which may create complications towards an athlete�s overall performance after the rehabilitation process. Also, the nerve may become damaged or injured as a result of a traction neuritis when the muscle belly retracts away from the nerve. Furthermore, compression or impingement due to a tight fibrotic band distal to the ischial tuberosity may also cause complications for many athletes. Managing hamstring avulsions and other types of injuries relating to the proper function and mobility associated with the sciatic nerve is an important factor towards overall recovery.
It is not uncommon for hamstring avulsions to involve only two heads of the hamstring and not all three. These are identified as partial avulsions. It is more common if the hamstring avulsions are partial to where it involves the combined tendon of the biceps femoris and the semitendinosus.
Mechanism of Injury
Due to the anatomical structure of the hamstrings, these can be highly vulnerable to suffer trauma or injury in the regions where the muscles and other tissues cross both the hip and knee, primarily because of its large leverage to function with the hip during movements.
The most common mechanism of injury involves forced knee extensions in a position of hip flexion while the muscle is placed under a large and rapid eccentric load. The force is conducted to the myotendinous junction. This often results due to a sudden and forceful landing from a jump where the knee was locked in extension, during foot contact in sprinting or in excessive and uncontrolled hip flexion, such as when the leg slips out from underneath the body and moves into hip flexion with the knee extended during sports or physical activities like forward splits, water skiing and bull riding.
Nonetheless, it�s been considered that in order for tendons to rupture, some level of degenerative alterations must have developed in the tendon before the rupture occurred. This hypothesis has been identified in athletes where the Achilles tendons rupture and the supraspinatus tendons rupture. Researchers have associated these findings with why myotendinous ruptures in the hamstrings of young athletes almost never occur, how they fail at the growth plate as well as explaining its increasing frequency in middle aged, recreational athletes.
The degeneration of the tendon occurs throughout the anatomical and biochemical change in the tissue of the tendon. The collagen fibers become disorganized, the intracellular matrix changes, cystic foci develop in the tendon and hypervascularity within the tendon becomes present. Tension and compression forces being applied against the body can often create these degenerative effects. The forces of tension occur as a result of a rapid, eccentric loading against the hamstring tendon as the hip is rapidly flexed. The forces of compression occur when the singular anatomy of the ischial tuberosity bone presses against the tendon and creates a zone of impingement. Repetitive and constant tension and compression forces then progressively degenerate, eventually becoming weaker and rupturing.
Furthermore, because of the proximity of the hamstring muscles to the sciatic nerve which runs down each leg from the lower back, a hamstring rupture could also affect this crucial nerve. As a result, the inflammation and swelling caused by an injury to the hamstring muscles and other surrounding tissues may compress the sciatic nerve, leading to symptoms of sciatica. Sciatica is commonly referred to as a series of symptoms rather than a single injury and condition. Therefore, athletes with hamstring avulsions may additionally experience symptoms of sciatica.
The affected athlete must seek immediate medical attention not only to effectively treat hamstring injuries but also to determine the presence of sciatica and properly diagnose whether another type of injury or underlying condition may be causing the sciatic nerve pain besides the hamstring rupture.
Hamstring Injury Symptoms
Athletes with hamstring avulsions commonly describe experiencing severe and debilitating symptoms after the injury. Many athletes report the pain as a sudden shot along with an audible pop. A majority of individuals faced with hamstring avulsions are guarded on the affected limb and are reluctant to bear full weight on a loaded limb. Hamstring ruptures causing sciatica may experience pain along with numbness and tingling sensations, radiating along the lower back, buttocks and thighs. Also, in some cases of injury, an athlete may develop myofascial pain syndrome, a disorder causing muscle pain in seemingly unrelated areas of the body.
When the affected athlete visits a healthcare professional, such as a chiropractor, physical therapist or other specialist, on examination, a palpable defect may be felt below the ischial tuberosity and a loss of the contour of the hamstring can often be observed. These, however, generally depend on the size of the gluteals and any intervening adipose tissue which could make direct palpation and visualization difficult. Healthcare specialists usually describe a significant discoloration throughout the hamstring muscle a few days after the injury occurred.
Further evaluation of athletes with hamstring avulsions show weakness in both isolated knee flexion and isolated hip extension along with reported pain. The individual�s range of motion is greatly restricted due to the symptoms and walking with a limp may be common as they may be unable to bear weight through the injured muscle.
If proper medical attention is delayed because the injury appears to be muscle related and the athlete believes it could heal on its own, the individual may experience hamstring muscle atrophy due to disuse.
Imaging
Basic X-rays and CT scans won�t provide beneficial results unless the hamstring avulsions occurred from the ischial tuberosity.
Ultrasound imaging may be useful, however, further research regarding its sensitivity and specificity requires more research.
MRI is the preferred method when the presence of a hamstring rupture is suspected because the details of the soft tissues are well displayed on an MRI, highlighting the level of tendon retraction as well as any interference with the sciatic nerve. Furthermore, MRI can be utilized throughout all stages of rehabilitation to evaluate the healing capacities of the tendon.
Hamstring Injury: Common Sports Injuries
Hamstring Lesion Treatment & Care
The treatment procedures for hamstring injuries have long been considered controversial, whether they effectively repair or don�t repair the damage or injury. A large number of criteria has been suggested to help healthcare professionals, such as chiropractors and physical therapists, among others, to help determine if athletes faced with hamstring avulsions may require surgery.
First, the osseous avulsion must have more than a 2 cm retraction. Second, there must be complete tears in all 3 tendons with or without retraction, and last, partial tears reporting painful and symptomatic despite prolonged conservative treatment, are some of the criteria an individual must meet to signal the need for surgery.
However, some partial or complete ruptures of the hamstring generally requires some form of operative treatment among the vast majority of athletes, primarily due to concerns regarding residual loss of strength and power.
Instances where partial hamstring ruptures may require operative treatment still remain fully unclear. In some cases, partial ruptures may rehabilitate properly through conservative procedures but if pain and other symptoms continue after a prolonged period of rehabilitation, then repairing a partial rupture through operative measures may lead to positive outcomes.
Surgical Intervention for Hamstring Ruptures
The surgical procedure for repairing hamstring avulsions is as follows: First, the hamstring muscle is contacted with a posterior incision beginning at the gluteal fold. The incision may extend over a 10 cm distance in order for the specialist to be able to fully access the retracted hamstring tendon. The placement of the posterior cutaneous nerve and the sciatic nerve in relation to the individual will be visualized and any adhesions at this point can be carefully resected, a process known as neurolysis. Neurolysis is almost always essential if surgery has been delayed due to misdiagnosis or following unsuccessful conservative treatment procedures. If a hematoma is detected, then this will be cleared.
The end piece of the proximal tendon on the ischial tuberosity is then located, as is the retracted tendon, and these will be closely located with the knee in flexion to reduce the hamstring stretch. Then, they will be repaired with Ethibond sutures and Merselene tapes. If the tendon has avulsed, then this will be anchored with a titanium self-tapping screw.
The stability of the surgical repair is evaluated by passively flexing the knee 45 degrees to create tension in the muscle and tendon. This allows the specialist to analyze the safety of the individuals range of motion throughout the course of surgery so that rehabilitation exercises and stretches can being early within safe ranges. Furthermore, this will avoid prolonged immobilization which have been shown to lead to considerable amounts of atrophy as well as loss of strength and range in post-operative hamstring repairs.
If hamstring injuries are effectively treated early, the need for a post-operative knee flexion brace is generally not necessary but, if the surgery was delayed, then a post-operative knee flexion brace may be required.
Several researches have attempted endoscopic repairs of hamstring avulsions, stating that this procedure can offer more benefits, such as minimizing scar tissue, superior visualization of the hamstring tendon, decreasing the amount of bleeding and better protection of the neurovascular bundle.
Post-Surgical Results
A majority of studies regarding the outcomes of hamstring tendon repairs through surgery providing the return of the individual�s strength and function have demonstrated that it may be unreasonable to expect an athlete to return to full strength in the hamstring following a surgically repaired hamstring tendon. Although the strength and function of the hamstring may be reduced, the athlete can successfully return to a pre-injury level of competition in most cases.
Researchers found that among individuals with repaired hamstring tendons through surgical procedures, 80 percent of them returned to participate in pre-injury levels of sports or physical activities. Moreover, the individual�s hamstring isotonic strength returned to an average of 84 percent while hamstring endurance returned to an average of 89 percent. Additionally, the researchers found that 90 percent of the hamstring injuries they followed had returned to pre-injury levels of sport or physical activity. All of these reported excellent outcomes in function and isokinetic tests demonstrated that the strength of the hamstring returned to 83 percent at six months as compared to 56 percent at the pre-surgery level. Finally, the researchers reported the evaluated results of seven individuals who underwent operative repair and concluded that the average time they experienced a restoration of function was 8.5 months. By six months of port-operative procedures, six of the seven individuals had returned to pre-operative levels of function.
Hamstring injuries are common complications which occur among a variety of athletes. While the symptoms of the injury can vary depending on the severity of the issue, it’s often reported that hamstring injuries can develop symptoms of sciatica. The sciatic nerve extends from the lower back, down the buttocks and thighs, which is why damage or injury to the legs can generally affect the nerves and tissues surrounding them.
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
IFM's Find A Practitioner tool is the largest referral network in Functional Medicine, created to help patients locate Functional Medicine practitioners anywhere in the world. IFM Certified Practitioners are listed first in the search results, given their extensive education in Functional Medicine
