In your calf at the back of the lower leg sit two major muscles (gastrocnemius and soleus), both held by the Achilles tendon (Equinus). Between the Achilles tendon and the heel bone is a bursa sac called a retrocalcaneal bursa ('calcaneus' = 'heel bone' and 'retro' = 'behind'). During contraction of the calf muscles, the Achilles tendon rubs against the retrocalcaneal bursa, which can become irritated as a result.
Bursitis is caused by overuse or excessive pressure on the joint, injury, infection, or an underlying condition, such as osteoarthritis, rheumatoid arthritis, gout, pseudogout, or ankylosing spondylitis. When bursitis is caused by an underlying condition, the condition must be treated along with the bursitis. When bursitis is caused by infection, called septic bursitis, medical treatment and antibiotics are necessary.
Where the tendon joins the calcaneal bone, friction can cause the spaces between the tendon, bone and skin to swell and inflame with bursitis. This constitutes a calcaneal bursa. Apart from swelling over the back of the heel, you?ll feel acute tenderness and pain when you move it or even apply light pressure. Your swollen heel may look more red than the other one, and the swelling is often so hard it can feel like bone, partly because it sometimes is, as a bony overgrowth can occur in chronic cases.
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.
Surgery is rarely need to treat most of these conditions. A patient with a soft tissue rheumatic syndrome may need surgery, however, if problems persist and other treatment methods do not help symptoms.
Continue to wear your orthotics for work and exercise to provide stability and restore foot function. Select suitable shoes for work and physical activity that provide stability for the heel. Regular stretching of the calf muscle can prevent heel bursitis. Do not suddenly increase activity amount without appropriate conditioning.