A bursa is a closed, fluid-filled sac that functions as a cushion and gliding surface to reduce friction between tissues of the body. The major bursae are located adjacent to the tendons near the large joints, such as in the shoulders, elbows, hips, and knees. When the bursa becomes inflamed, the condition is known as bursitis. Bursitis is usually a temporary condition. It may restrain motion, but generally does not cause deformity.
Certain medical conditions and medications suppress people's immune systems and make them more susceptible to septic bursitis. For example, people with cancer, HIV/AIDS, lupus, alcoholism, chronic obstructive pulmonary disease (COPD), and diabetes may be more likely to get septic bursitis. History of inflammation of the bursa. Patients who have had bursitis in the past have an increased chance of getting it again. There may be more than one reason why the retrocalcaneal bursa is inflamed. In these cases, treatment should address all of the causes.
Symptoms of bursitis include pain in the heel, especially with walking, running, or when the area is touched. The skin over the back of the heel may be red and warm, and the pain may be worse with attempted toe rise (standing on tippy-toes).
Your health care provider will take a history to find out if you have symptoms of retrocalcaneal bursitis. Examining your ankle can find the location of the pain. The physician will look for tenderness and redness in the back of the heel. The pain may be worse when the doctor bends the ankle upward (dorsiflex). Or, the pain may be worse when you rise on your toes. You will not usually need imaging studies such as x-ray and MRI at first. If the first treatment does not improve the symptoms, your health care provider may recommend these tests. MRI may show inflammation.
Non Surgical Treatment
Rest, ice, and anti-inflammatory medication will help with pain and swelling. Physical therapy can help stretch the Achilles to relieve any impingement. Also, a switch to properly-fitting shoes will help to prevent the condition from worsening or recurring. You might also find relief with shoe inserts such as heel cups or padding. If you have tried these measures, yet symptoms remain severe and continue to progress, surgical intervention is a possibility. Calcaneal bursitis surgery consists of excision or removal of the inflamed tissues and resection of the boney prominence. Debridement of the affected area near the Achilles may also be performed, as well as repair of the Achilles if the condition has gone so far that the tendon ruptures.
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).
Maintain proper form when exercising, as well as good flexibility and strength around the ankle to help prevent this condition. Proper stretching of the Achilles tendon helps prevent injury.