Glossary

Arch - The arch of the foot is the area of the bottom of the foot between the heel pad and toe pad.

Acrokeratosis verruciformis - a hereditary dermatosis characterized by the presence of numerous flat wart-like papules on the dorsal aspect of the hand, foot, elbow, and knee.

Ankle - the part of the leg just above the foot; the joint between the leg and the foot. It is a hinge joint formed by the junction of the tibia and fibula with the talus, or ankle bone. The bones are cushioned by cartilage and connected by a number of ligaments, tendons, and muscles that strengthen the joint and enable it to be moved. Because it is in almost constant use, the ankle is particularly susceptible to injuries, such as sprain and fracture. It is also often one of the first joints to be affected by arthritis or gout.

Ankle clonus - a series of abnormal reflex movements of the foot, induced by sudden dorsiflexion, causing alternate contraction and relaxation of the triceps surae muscle.

Athlete's foot - a fungal infection of the skin of the foot; called also tinea pedis. It causes itching and often blisters and cracks, usually between the toes. Causative agents are Candida albicans, Epidermophyton floccosum, and species of Trichophyton, which thrive on warmth and dampness. If not arrested, it can cause a rash and itching in other parts of the body as well. It is likely to be recurrent, since the fungus survives under the toenails and reappears when conditions are favorable. Although Athlete''s foot is usually little more than an uncomfortable nuisance, its open sores provide excellent sites for more serious infections. Early treatment and health care supervision insure correct diagnosis and prevention of complications. Specific diagnosis is made by microscopic examination or culture of skin scrapings for the fungus.

Painful calluses on the ball of the foot are caused by an abnormal alignment of the metatarsal bones. There are five metatarsal bones in each foot, each consisting of the long bones behind each toe. The metatarsal bone behind the big toe is called the first metatarsal, and so on.

The most common metatarsal surgery is performed on the first metatarsal for the correction of bunions.

Surgery on the second through fifth metatarsal bones is performed infrequently, and is usually done to treat painful calluses on the bottom of the foot or non-healing ulcers on the ball of the foot. Patients with rheumatoid arthritis may also need metatarsal surgery.

During surgery, the metatarsal bone is cut just behind the toe. Generally, the bone is cut all the way through, and then manually raised and held in its corrected position with a metal pin or screw. Following the surgery, the patient's foot may be placed in a cast.

In some instances, a surgeon will also cut out the painful callous on the bottom of the foot, but most prefer to do the procedure in an outpatient setting.




Sterling and Gaston