Bursitis is the painful inflammation of the bursa, a padlike sac found in areas subject to friction. Bursae cushion the movement between the bones, tendons and muscles near the joints. Bursitis is most often caused by repetitive movement and is known by several common names including weaver's bottom, clergyman's knee, and miner's elbow, depending on the affected individual's occupation and area of injury.
Retrocalcaneal bursitis is generally caused by local trauma from poorly designed shoes. Patients complain of posterolateral heel pain and may have a posterior heel prominence (?pump bump?), as well as local swelling and tenderness over the Achilles tendon. Pain is increased by squeezing the bursa from side to side and anterior to the Achilles. A heel lift and open-back shoes help alleviate pressure.
Pain and tenderness usually develop slowly over time. Applying pressure to the back of the heel can cause pain. Wearing shoes may become uncomfortable. The back of the heel may feel achy. Pain is exacerbated when the foot is pointed or flexed, because the swollen bursa can get squeezed. A person with retrocalcaneal bursitis may feel pain when standing on their toes. Fever or chills in addition to other bursitis symptoms can be a sign of septic bursitis. Though uncommon, septic retrocalcaneal bursitis is a serious condition, and patients should seek medical care to ensure the infection does not spread.
On physical examination, patients have tenderness at the site of the inflamed bursa. If the bursa is superficial, physical examination findings are significant for localized tenderness, warmth, edema, and erythema of the skin. Reduced active range of motion with preserved passive range of motion is suggestive of bursitis, but the differential diagnosis includes tendinitis and muscle injury. A decrease in both active and passive range of motion is more suggestive of other musculoskeletal disorders. In patients with chronic bursitis, the affected limb may show disuse atrophy and weakness. Tendons may also be weakened and tender.
Non Surgical Treatment
Cold compresses can help reduce the initial swelling and pain in acute (short-term but severe) soft tissue conditions. Cold therapy is usually most effective during the first 48 hours after swelling begins. Guidelines for cold therapy include. Use a cold gel pack, a bag filled with ice cubes, or even a bag of frozen vegetables. Wrap the pack in a towel if the cold temperature is too painful. Place the cold pack over the area for 20 minutes, three to four times a day. Rub an ice cube over smaller painful areas for a short time. After 48 hours, or for chronic (long-term) pain, dry or moist heat may be more helpful than cold compresses. Follow these guidelines. Use a hot pack, a heating pad, or a damp towel heated in the microwave (make sure it's not too hot or it may burn your skin). Place a hot pack over the painful area for 15-20 minutes, three to four times a day. Never use analgesic creams or rubs with heat packs because the combination could severely burn your skin. Take a warm shower or bath.
Surgery. Though rare, particularly challenging cases of retrocalcaneal bursitis might warrant a bursectomy, in which the troublesome bursa is removed from the back of the ankle. Surgery can be effective, but operating on this boney area can cause complications, such as trouble with skin healing at the incision site. In addition to removing the bursa, a doctor may use the surgery to treat another condition associated with the retrocalcaneal bursitis. For example, a surgeon may remove a sliver of bone from the back of the heel to alter foot mechanics and reduce future friction. Any bone spurs located where the Achilles attaches to the heel may also be removed. Regardless of the conservative treatment that is provided, it is important to wait until all pain and swelling around the back of the heel is gone before resuming activities. This may take several weeks. Once symptoms are gone, a patient may make a gradual return to his or her activity level before their bursitis symptoms began. Returning to activities that cause friction or stress on the bursa before it is healed will likely cause bursitis symptoms to flare up again.
Maintain proper form when exercising, good flexibility, and strength around the ankle to help prevent this condition from arising. Proper stretching of the achilles tendon helps prevent injury.