Bursitis In The Foot

Overview

Bursitis is the inflammation of a bursa. Retrocalcaneal bursitis is in inflammation of the bursa located between the calcaneus and the anterior surface of the Achilles tendon.There are two bursae located just superior to the insertion of the Achilles (calcaneal) tendon. Anterior or deep to the tendon is the retrocalcaneal (subtendinous) bursa, which is located between the Achilles tendon and the calcaneus. Posterior or superficial to the Achilles tendon is the subcutaneous calcaneal bursa, also called the Achilles bursa. This bursa is located between the skin and posterior aspect of the distal Achilles tendon.Inflammation of either or both of these bursa can cause pain at the posterior heel and ankle region. It is also known as Achille tendon bursitis. It can often be mistaken for Achilles tendonitis or can also occur in conjunction with Achilles tendonitis.

Causes

The causes and risk factors of retrocalcaneal bursitis are listed below. Identifying the underlying reason the bursa is inflamed will help set a course for treatment. Repetitive use of the ankle. Retrocalcaneal bursitis is often caused by frequent “mini-traumas.” These mini-traumas are often due to excessive walking, jumping, or running. Running uphill, which causes the foot to flex considerably, can be especially irritating to the retrocalcaneal bursae. People who suddenly intensify their exercise programs without adequate stretching and muscle conditioning may get retrocalcaneal bursitis. In general, it is often associated with over use of the Achilles attachment, the area where the Achilles tendon fibers attach to the heel.

Symptoms

Patients with this condition typically experience pain at the back of the ankle and heel where the Achilles tendon attaches into the heel bone. Pain is typically experienced during activities requiring strong or repetitive calf contractions (often involving end of range ankle movements) such as walking (especially uphill), going up and down stairs, running, jumping or hopping (especially whilst wearing excessively tight shoes). Often pain may be worse with rest after these activities (especially that night or the following morning). The pain associated with this condition may ‘warm up’ with activity in the initial stages of injury. As the condition progresses, patients may experience symptoms that increase during sport or activity, affecting performance. In severe cases, patients may walk with a limp or be unable to weight bear on the affected leg. Other symptoms may include tenderness on firmly touching the affected bursa and swelling around the Achilles region.

Diagnosis

Gram stain. A lab test called a Gram stain is used to determine if certain troublesome bacteria are present. Not all bacteria can be identified with a Gram stain, however, so even if the test comes back negative, septic bursitis cannot be completely ruled out. White blood cell count. An elevated number of white blood cells in the bursa’s synovial fluid indicates an infection. Glucose levels test. Glucose levels that are significantly lower than normal may indicate infection.

Non Surgical Treatment

Orthotics may assist heel bursitis by providing stability to the heel, reduce any foot functioning abnormalities and provide extra support for the feet. The orthotic achieves this by maintaining correct foot posture, therefore facilitating normal functioning of the Achilles tendon. Icing the back of the heel post activity for temporary relief. Non-steroidal anti-inflammatory medication such as ibuprofen can reduce inflammation of the bursa. Stretching of the calf muscle may reduce the pulling on the heel by the Achilles tendon. Shoes that have an elevated heel may reduce pulling on the heel from the Achilles tendon. Resting the painful heel may reduce inflammation and pain. Surgical removal of the painful bursa is a last resort treatment when all other treatments have failed.

Surgical Treatment

Surgery to remove the damaged bursa may be performed in extreme cases. If the bursitis is caused by an infection, then additional treatment is needed. Septic bursitis is caused by the presence of a pus-forming organism, usually staphylococcus aureus. This is confirmed by examining a sample of the fluid in the bursa and requires treatment with antibiotics taken by mouth, injected into a muscle or into a vein (intravenously). The bursa will also need to be drained by needle two or three times over the first week of treatment. When a patient has such a serious infection, there may be underlying causes. There could be undiscovered diabetes, or an inefficient immune system caused by human immunodeficiency virus infection (HIV).