Bursae (two or more bursa) are small, fluid-filled sacs that cushion the bones, tendons and muscles surrounding your joints. They contain a lubricating fluid that reduces friction, allowing tissues in the body to glide past each other smoothly. Imagine the bursa as a protective layer that helps keep a tendon or muscle from fraying or getting aggravated as it eases over a bone or around a corner. Bursitis is a condition that occurs when a bursa becomes inflamed: irritated, red and filled with more fluid than normal.
Inflammation of the bursa causes synovial cells to multiply and thereby increases collagen formation and fluid production. A more permeable capillary membrane allows entrance of high protein fluid. The bursal lining may be replaced by granulation tissue followed by fibrous tissue. The bursa becomes filled with fluid, which is often rich in fibrin, and the fluid can become hemorrhagic. One study suggests that this process may be mediated by cytokines, metalloproteases, and cyclooxygenases.
Nagging ache and swelling in or around a joint. Painful and restricted movement in the affected joint. Pain radiating into the neck or arms when bursitis strikes the shoulder (the most common site). Fever, when associated with an infection.
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
One of the most effective treatments for infracalcaneal bursitis is to temporarily avoid weight-bearing activities that put stress or strain on your heel bone. PRICE (protection, rest, hot/cold contrast compresses, compression, and elevation) is another good acute management technique for this foot problem. Changing your footwear is an effective long-term prevention and treatment tool for infracalcaneal bursitis. Footwear that possess a flat support base, a sufficiently wide toe box to accommodate natural toe splay, and a flexible sole are best for preventing and managing infracalcaneal bursitis. An integrated approach to this problem usually involves the use of padded socks that help reduce pressure, friction, and inflammation in your affected area. Natural anti-inflammatory agents can also be helpful in quelling inflammation, reducing pain, and improving treatment times for infracalcaneal bursitis. In rare cases, more aggressive treatment methods may be required, such as cortisone injections or surgery to drain the bursal sac.
Only if non-surgical attempts at treatment fail, will it make sense to consider surgery. Surgery for retrocalcanel bursitis can include many different procedures. Some of these include removal of the bursa, removing any excess bone at the back of the heel (calcaneal exostectomy), and occasionally detachment and re-attachment of the Achilles tendon. If the foot structure and shape of the heel bone is a primary cause of the bursitis, surgery to re-align the heel bone (calcaneal osteotomy) may be considered. Regardless of which exact surgery is planned, the goal is always to decrease pain and correct the deformity. The idea is to get you back to the activities that you really enjoy. Your foot and ankle surgeon will determine the exact surgical procedure that is most likely to correct the problem in your case. But if you have to have surgery, you can work together to develop a plan that will help assure success.