Overview
In the foot we have a unique situation in that between the shoes that we wear and the ground that we walk on various parts of the foot are constantly being ?micro? traumatized meaning that every time we take a step we do a small amount of damage to a particular part of the foot and eventually that part of the foot begins to hurt. The body?s response to this micro-trauma is to create a bursal sac to initially protect the area but if micro-traumatized enough the bursal sac itself becomes inflamed and we have a bursitis.
Causes
Normally, only one bursa is in the heel, between the Achilles tendon and the heel bone (calcaneus). This bursa may become inflamed, swollen, and painful, resulting in anterior Achilles tendon bursitis. Abnormal pressure and foot dysfunction can cause a protective bursa to form between the Achilles tendon and the skin. This bursa may also become inflamed, swollen, and painful, resulting in posterior Achilles tendon bursitis.
Symptoms
Pain when activating the Achilles tendon (running and jumping) and when applying pressure at the point of attachment of the tendon on the heel bone. Contrary to the tenderness occurring with inflammation of the Achilles tendon, the tenderness is localised to the point of attachment to the heel bone.
Diagnosis
Your doctor will examine you, including an evaluation of your gait, while you are barefoot, your doctor will ask you to stand still and to walk in order to evaluate how your foot moves as you walk. An examination of your feet. Your doctor may compare your feet for any differences between them. Then your doctor may examine your painful foot for signs of tenderness, swelling, discoloration, muscle weakness and decreased range of motion. A neurological examination. The nerves and muscles may be evaluated by checking strength, sensation and reflexes. In addition to examining you, your health care professional may want to examine your shoes. Signs of excessive wear in certain parts of a shoe can provide valuable clues to problems in the way you walk and poor bone alignment. Depending on the results of your physical examination, you may need foot X-rays or other diagnostic tests.
Non Surgical Treatment
Over-the-counter or custom heel wedges may help to decrease the stress placed on the attachment of the achilles tendon and the associated bursa. If these interventions are ineffective, then some health care providers may inject a small amount of steroids into the bursa. If the condition is associated with Achilles tendonitis, then casting the ankle to prevent motion for several weeks can be effective. Very rarely, surgery may be necessary to remove the inflamed bursa.
Surgical Treatment
Surgery to remove the damaged bursa may be performed in extreme cases. If the bursitis is caused by an infection, then additional treatment is needed. Septic bursitis is caused by the presence of a pus-forming organism, usually staphylococcus aureus. This is confirmed by examining a sample of the fluid in the bursa and requires treatment with antibiotics taken by mouth, injected into a muscle or into a vein (intravenously). The bursa will also need to be drained by needle two or three times over the first week of treatment. When a patient has such a serious infection, there may be underlying causes. There could be undiscovered diabetes, or an inefficient immune system caused by human immunodeficiency virus infection (HIV).
In the foot we have a unique situation in that between the shoes that we wear and the ground that we walk on various parts of the foot are constantly being ?micro? traumatized meaning that every time we take a step we do a small amount of damage to a particular part of the foot and eventually that part of the foot begins to hurt. The body?s response to this micro-trauma is to create a bursal sac to initially protect the area but if micro-traumatized enough the bursal sac itself becomes inflamed and we have a bursitis.
Causes
Normally, only one bursa is in the heel, between the Achilles tendon and the heel bone (calcaneus). This bursa may become inflamed, swollen, and painful, resulting in anterior Achilles tendon bursitis. Abnormal pressure and foot dysfunction can cause a protective bursa to form between the Achilles tendon and the skin. This bursa may also become inflamed, swollen, and painful, resulting in posterior Achilles tendon bursitis.
Symptoms
Pain when activating the Achilles tendon (running and jumping) and when applying pressure at the point of attachment of the tendon on the heel bone. Contrary to the tenderness occurring with inflammation of the Achilles tendon, the tenderness is localised to the point of attachment to the heel bone.
Diagnosis
Your doctor will examine you, including an evaluation of your gait, while you are barefoot, your doctor will ask you to stand still and to walk in order to evaluate how your foot moves as you walk. An examination of your feet. Your doctor may compare your feet for any differences between them. Then your doctor may examine your painful foot for signs of tenderness, swelling, discoloration, muscle weakness and decreased range of motion. A neurological examination. The nerves and muscles may be evaluated by checking strength, sensation and reflexes. In addition to examining you, your health care professional may want to examine your shoes. Signs of excessive wear in certain parts of a shoe can provide valuable clues to problems in the way you walk and poor bone alignment. Depending on the results of your physical examination, you may need foot X-rays or other diagnostic tests.
Non Surgical Treatment
Over-the-counter or custom heel wedges may help to decrease the stress placed on the attachment of the achilles tendon and the associated bursa. If these interventions are ineffective, then some health care providers may inject a small amount of steroids into the bursa. If the condition is associated with Achilles tendonitis, then casting the ankle to prevent motion for several weeks can be effective. Very rarely, surgery may be necessary to remove the inflamed bursa.
Surgical Treatment
Surgery to remove the damaged bursa may be performed in extreme cases. If the bursitis is caused by an infection, then additional treatment is needed. Septic bursitis is caused by the presence of a pus-forming organism, usually staphylococcus aureus. This is confirmed by examining a sample of the fluid in the bursa and requires treatment with antibiotics taken by mouth, injected into a muscle or into a vein (intravenously). The bursa will also need to be drained by needle two or three times over the first week of treatment. When a patient has such a serious infection, there may be underlying causes. There could be undiscovered diabetes, or an inefficient immune system caused by human immunodeficiency virus infection (HIV).