Overview
Retrocalcaneal bursitis is the inflammation of the fluid-filled sac (bursa) at the back of the heel bone (calcaneus). The retrocalcaneal bursa is located between the Achilles tendon and the heel bone and is designed to reduce friction between the Achilles tendon and the heel bone. During contraction of the calf muscle, tension is generated through the Achilles tendon and it rubs against the retrocalcaneal bursa. When there is excessive friction due to repetitive rubbing of the tendon against the bursa or high impact force translating through the Achilles tendon, irritation and inflammation of the bursa may occur. The inflammation can also be aggravated by pressure, such as when athletes wear tight-fitting shoes. This condition is often mistaken for Achilles tendinitis but it can also occur in conjunction with Achilles tendinitis.
Causes
Bursitis has many causes, including autoimmune disorders, crystal deposition (gout and pseudogout), infectious diseases, traumatic events, and hemorrhagic disorders, as well as being secondary to overuse. Repetitive injury within the bursa results in local vasodilatation and increased vascular permeability, which stimulate the inflammatory cascade.
Symptoms
Achiness or stiffness in the affected joint. Worse pain when you press on or move the joint. A joint that looks red and swollen (especially when the bursae in the knee or elbow are affected). A joint that feels warm to the touch, compared to the unaffected joint, which could be a sign that you have an infection in the bursa. A ?squishy? feeling when you touch the affected part. Symptoms that rapidly reappear after an injury or sharp blow to the affected area.
Diagnosis
Diagnosis is first by clinical suspicion of symptoms. This can be mistaken for gout or infection especially in the big toe region. A diagnosis of bursitis is usually used in combination of the underlying cause, for instance a bunion deformity, Haglund’s deformity, or Heel Spur Syndrome. Many times the cause needs to be addressed to rid the problem of bursitis.
Non Surgical Treatment
Treatment is primarily comprised of relief from the painful activity (running). It is important that shoes do not pinch the heel. If satisfactory progress is not made during the rehabilitation, medical treatment can be considered in the form of rheumatic medicine (NSAID) or injection of corticosteroid in the bursa. Injections should be performed under ultrasound guidance to ensure optimal effect and reduce the risk of injecting into the Achilles itself. If progress is not made neither through rehabilitation nor medicinal treatment, surgical treatment can be attempted.
Prevention
Do not run if you have pain. When you begin running again, avoid running fast uphill or downhill until the tendon is fully healed. Start exercising when caregivers say that it is OK. Slowly start exercise such as bicycling when caregivers say it is OK. When doing exercises that put pressure on the ankles, such as running or walking, exercise on flat, even surfaces. Avoid doing these exercises on very hard surfaces such as asphalt or concrete. Stretch before exercising. Always warm up your muscles and stretch gently before exercising. Do cool down exercises when you are finished. This will loosen your muscles and decrease stress on your heel. Wear heel protectors. Use soft foam or felt heel pads (wedges or cups) to help decrease pressure against your heel. Ask your caregiver which heel pads are the best for you. Wear well-fitting shoes. Buy running or exercise shoes that support and fit your feet well. Do not wear low-cut shoes. Talk to your caregiver or go to a special exercise footwear store to get well-fitting athletic shoes. Ask your caregiver if you should wear specially-made shoe inserts called orthotics (or-THOT-iks). Orthotics can line up your feet in your shoes to help you run, walk and exercise correctly.
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