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Functional Medicine�

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Functional Medicine Explained

Corticosteroid Injection Therapy: Treatment Options


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.


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).

1. Injection Techniques in Musculoskeletal Medicine, Stephanie Saunders. 2012; 4th 82
2. BMJ. 2009;338:a3112 doi:10.1136/bmj.a3112
3. J Musculoskel Med. 2008; 25: 78-98
4. BJSM. 43: 409-416
5. Rheumatology. 1999; 38:1272-1274
6. Br Med J. 1998; 316:1442-1445
7. Ann Rheum Dis. 2009; 68(12): 1843-1849
8.Am J Sports Med. 1976; 4(1):11-21
9. B J Gen Pract; 2002; Feb:145-152
10. BMJ. 2010;340:c3037doi:10.1136/bmj.c3037
11. J Muscuoloskel Med. 2009; 26:25-27
12.Anesth Analg. 2009; 108: 1662-1670
13. Oper Tech Sports Med. 2012; 20:172-184
14. BMJ. 2012;344:e3260

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Dr. Alex Jimenez D.C.,C.C.S.T

Welcome-Bienvenido's to our blog. We focus on treating severe spinal disabilities and injuries. We also treat Sciatica, Neck and Back Pain, Whiplash, Headaches, Knee Injuries, Sport Injuries,�Dizziness, Poor Sleep, Arthritis. We use advanced proven therapies focused on optimal mobility, health, fitness, and structural conditioning. We use Individualized Diet Plans, Specialized Chiropractic Techniques, Mobility-Agility Training, Adapted Cross-Fit Protocols and the "PUSH System" to treat patients suffering from various injuries and health problems. If you would like to learn more about a Doctor of Chiropractic who uses advanced progressive techniques to facilitate complete physical health, please connect with me. We a focus on simplicity to help restore mobility and recovery. I'd love to see you. Connect!

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