Overview

Bursitis is the inflammation of the small fluid-filled pads, or bursae, that act as cushions among your bones and the tendons and muscles near your joints. Bursitis occurs when the bursa become inflamed, and often occurs in joints that perform frequent and repetitive motion. The foot only contains one naturally occurring bursal sac between the Achilles tendon and the heel bone, which protects the Achilles from the pressure against the heel bone during ambulation. However, shoes may put pressure on this bursa. The bursa might also incur trauma from walking on hard ground. And, though they are not naturally occurring, bursa sacs can also form, and become inflamed, in other parts of the foot, including the bottom of the heel, and the metatarsal plate, the outside of the foot below the fifth toe, and so on.

Causes

Bursitis occurs when the synovial lining becomes thickened and produces excessive fluid, leading to localized swelling and pain. It most commonly affects the subacromial, olecranon, trochanteric, prepatellar, and infrapatellar bursae. Symptoms of bursitis may include localized tenderness, pain, edema, erythema, or reduced movement. Pain is aggravated by movement of the specific joint, tendon, or both.

Symptoms

Unlike Achilles tendinitis, which tends to manifest itself slightly higher on the lower leg, Achilles tendon bursitis usually creates pain and irritation at the back of the heel. Possible signs of bursitis of the Achilles tendon include difficulty to rise on toes. Standing on your toes or wearing high heels may increase the heel pain. Inflammation and tenderness. The skin around your heel can become swollen and warm to the touch. Redness may be visible. Pain in the heel. Pain tends to become more prominent when walking, running, or touching the inflamed area. Stiffness. The back of your ankle may feel a little stiff due to the swelling of the bursa.

Diagnosis

Like all other forms of bursitis, initially the physician will take down the history of symptoms experienced by the patient, this will be followed by a detailed physical examination which involves checking for inflammation signs like pain, redness, and warmth of the heel area. The physician might examine further by moving the ankle a little to determine the exact location of pain. Further diagnostic tests including x-ray, bone scans, and MRI scan might be suggested if required.

Non Surgical Treatment

The following exercises are commonly prescribed to patients with retrocalcaneal bursitis. You should discuss the suitability of these exercises with your physiotherapist prior to beginning them. Generally, they should be performed 2, 3 times daily and only provided they do not cause or increase symptoms. Your physiotherapist can advise when it is appropriate to begin the initial exercises and eventually progress to the intermediate, advanced and other exercises. As a general rule, addition of exercises or progression to more advanced exercises should take place provided there is no increase in symptoms. Move your foot and ankle up and down as far as you can go without pain and provided you feel no more than a mild to moderate stretch. Repeat 10, 20 times provided there is no increase in symptoms. Move your foot and ankle in and out as far as you can go without pain and provided you feel no more than a mild to moderate stretch. Repeat 10, 20 times provided there is no increase in symptoms. Move your foot and ankle in a circle as large as you can go without pain and provided you feel no more than a mild to moderate stretch. Repeat 10, 20 times in both clockwise and anticlockwise directions provided there is no increase in symptoms. Calf Stretch with Towel. Begin this stretch in long sitting with your leg to be stretched in front of you. Your knee and back should be straight and a towel or rigid band placed around your foot as demonstrated. Using your foot, ankle and the towel, bring your toes towards your head as far as you can go without pain and provided you feel no more than a mild to moderate stretch in the back of your calf, Achilles tendon or leg. Hold for 5 seconds and repeat 10 times at a mild to moderate stretch provided the exercise is pain free.

Surgical Treatment

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.