There are about 160 bursae in the human body. These little, fluid-filled sacs cushion pressure and lubricate points between our bones, tendons, and muscles near our joints. The bursae are lined with synovial cells. Synovial cells produce a lubricant that reduces friction. This cushioning and lubrication allows our joints to move easily. When a person has bursitis, inflammation of the bursa, movement or pressure is painful. Overuse, injury and sometimes an infection from gout or rheumatoid arthritis may cause bursitis.
Systemic diseases such as rheumatoid arthritis, ankylosing spondylitis, reactive arthritis, psoriatic arthritis, scleroderma, systemic lupus erythematosus, pancreatitis, Whipple disease, oxalosis, uremia, hypertrophic pulmonary osteoarthropathy, and idiopathic hypereosinophilic syndrome have also been associated with bursitis.
Unlike Achilles tendinitis, which tends to manifest itself slightly higher on the lower leg, Achilles tendon bursitis usually creates pain and irritation at the back of the heel. Possible signs of bursitis of the Achilles tendon include difficulty to rise on toes. Standing on your toes or wearing high heels may increase the heel pain. Inflammation and tenderness. The skin around your heel can become swollen and warm to the touch. Redness may be visible. Pain in the heel. Pain tends to become more prominent when walking, running, or touching the inflamed area. Stiffness. The back of your ankle may feel a little stiff due to the swelling of the bursa.
Plain radiographs of the calcaneus may reveal a Haglund deformity (increased prominence of the posterosuperior aspect of the calcaneus). However, on weight-bearing lateral radiographs, the retrocalcaneal recess often appears normal even in patients with retrocalcaneal bursitis, limiting its usefulness in making this diagnosis.Radiographs may be used as a diagnostic measure to support a clinician?s diagnosis of retrocalcaneal bursitis. Individuals with retrocalcaneal bursitis may have an absence of the normal radiolucency (ie, blunting) that is seen in the posteroinferior corner of the Kager fat pad, known as the retrocalcaneal recess or bursal wedge. This may occur with or without an associated erosion of the calcaneus.
Non Surgical Treatment
Rest and apply cold therapy or ice. Ice should not be applied directly to the skin as it may cause ice burns but wrap in a wet tea towel. Commercially available hot and cold packs are often more convenience than using ice. Taping the bursa with a donut shaped pad to take some of the pressure from footwear may help. A doctor may prescribe anti-inflammatory medication e.g. ibuprofen to reduce the pain and inflammation. Applying electrotherapy such as ultrasound may reduce inflammation and swelling. A steroid injection followed by 48 hours rest may be given for persistent cases. If the bursitis is particularly bad and does not respond to conservative treatment then surgery is also an option.
Bursectomy is a surgical procedure used to remove an inflamed or infected bursa, which is a fluid-filled sac that reduces friction between tissues of the body. Because retrocalcaneal bursitis can cause chronic inflammation, pain and discomfort, bursectomy may be used as a treatment for the condition when it is persistent and cannot be relived with other treatments. During this procedure, a surgeon makes small incisions so that a camera may be inserted into the joint. This camera is called an arthroscope. Another small incision is made so that surgical instruments can be inserted to remove the inflamed bursa.
You can help to prevent heel pain and bursitis by maintaining a healthy weight, by warming up before participating in sports and by wearing shoes that support the arch of the foot and cushion the heel. If you are prone to plantar fasciitis, exercises that stretch the Achilles tendon (heel cord) and plantar fascia may help to prevent the area from being injured again. You also can massage the soles of your feet with ice after stressful athletic activities. Sometimes, the only interventions needed are a brief period of rest and new walking or running shoes.