The most common bursa to be inflamed in the foot is the retrocalcaneal bursa (also referred to as the subtendinous calcaneal bursa). Located between the Achilles tendon and the heel bone (calcaneus), this is a “true” bursa that is present from birth. It acts as a cushion to protect the Achilles tendon from friction against the heel bone. Also commonly affected, the subcutaneous calcaneal bursa (also referred to as the Achilles bursa), located between the Achilles tendon and the skin, sits a little lower down the ankle towards the heel than the retrocalcaneal bursa. This bursa develops as you age, an “adventitious” bursa, to protect the tendon from friction at the back of the heel.
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.
Symptoms of Achilles bursitis are often mistaken for Achilles tendinitis because of the location of the pain at the back of the heel. When you suffer from Achilles bursitis you will experience some or all of the following symptoms which are most noticeable when you begin activity after resting. High heels can add pressure on the retrocalcaneal bursa, subcutaneous calcaneal bursa, and Achilles tendon.
Obtaining a detailed history from the patient is important in diagnosing calcaneal bursitis. The following complaints (which the physician should ask about during the subjective examination) are commonly reported by patients.
Other inquiries that the physician should make include the following. The clinician should ask about the patient’s customary footwear (whether, for example, it includes high-heeled shoes or tight-fitting athletic shoes). The patient should be asked specifically about any recent change in footwear, such as whether he/she is wearing new athletic shoes or whether the patient has made a transition from flat shoes to high heels or vice versa. Individuals who have been accustomed to wearing high-heeled shoes on a long-term basis may find that switching to flat shoes causes increased stretch and irritation of the Achilles tendon and the associated bursae. The specifics of a patient’s activity level should be ascertained, including how far the patient runs and, in particular, whether the individual is running with greater intensity than before or has increased the distance being run. The history of any known or suspected underlying rheumatologic conditions, such as gout, rheumatoid arthritis, or seronegative spondyloarthropathies, should be obtained.
Non Surgical Treatment
Long Term Treatment must be directed towards eliminating the abnormal tilting of the heel, regardless of its cause. If this is delayed, the usual results are the pain and swelling becomes worse, chronic, and debilitating. Eventually, painful calcifications and bone spur formations may occur on the back of the heel, along with tears in the Achilles Tendon. These are serious problems that may require surgical intervention. In order to eliminate abnormal heel tilt, the foot must be re-balanced. Controlling and reducing the biomechanical foot defects that are causing the heel to tilt best accomplish this. The “Gold Standard” of medical care (that treatment most used by doctors and therapists) to help eliminate pain, inflammation, and swelling at the back of the heel is orthotics.
Surgery is rarely done strictly for treatment of a bursitis. If any underlying cause is the reason, this may be addressed surgically. During surgery for other conditions, a bursa may be seen and removed surgically.