Bursae are fluid-filled sacs that act as shock absorbers and cushions for our bones and tendons. There are two such sacs located on the back of your heel. The subtendinous calcaneal, also called retrocalcaneal bursa, is situated between the Achilles tendon and the heel bone (calcaneus). The subcutaneous calcaneal bursa, which is also referred to as the Achilles bursa, is found on the backside of the heel and Achilles. If either or both of these bursae become inflamed, the result is pain and tenderness.
Overuse of the ankle joint may cause irritation of the bursa such as excessive walking, running or jumping. Poor biomechanics and foot function may ultimately lead to heel bursitis due to pulling on the back of the heel by the Achilles tendon.
A sudden increase in physical activity without adequate rest may result in heel bursitis. Excessive standing and walking bare foot on hard surfaces.
What are the symptoms of heel bursitis? pain, swelling, tenderness, redness, and/or warmth at either the bottom of the heel or top of the heel, depending on the degree of swelling, pain may be a dull ache or substantial enough to cause limping, running, jumping, and walking activities may exacerbate pain, wearing poorly fitting, tight, or high-heeled shoes may exacerbate pain.
Gram stain. A lab test called a Gram stain is used to determine if certain troublesome bacteria are present. Not all bacteria can be identified with a Gram stain, however, so even if the test comes back negative, septic bursitis cannot be completely ruled out. White blood cell count. An elevated number of white blood cells in the bursa’s synovial fluid indicates an infection. Glucose levels test. Glucose levels that are significantly lower than normal may indicate infection.
Non Surgical Treatment
Despite appropriate physiotherapy management, some patients with retrocalcaneal bursitis do not improve adequately. When this occurs the treating physiotherapist or doctor can advise on the best course of management. This may include further investigations such as an ultrasound, X-Ray, MRI or CT scan, pharmaceutical intervention, corticosteroid and anaesthetic injection into the retrocalcaneal bursa, draining of the bursa, or review by a specialist or podiatrist who can advise on any treatment that may be appropriate to improve the condition.
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.
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.