Abnormal Calluses

Usually the result of undue friction and pressure around a bony prominence, these common lesions are often associated with improper biomechanics and foot posture. A corn, also known as a clavus or heloma, is a somewhat conical, concentrated hyperkeratotic lesion most commonly found on the dorsal surface of the proximal interphalangeal joint of the lesser toes. This joint also becomes contracted in hammer toe syndrome, making it vulnerable to excessive pressure from shoes and stockings. The problem may be complicated by a bunion deformity, in which the great toe deviates laterally, causing a contraction of the second toe. Digital contractures and arthritic changes may also cause lesions to develop on the distal aspect of the toes. The fifth toe is prone to developing a corn because of rotational deformity. If not properly treated, these hard hyperkeratotic lesions can lead to inflammation and infection. A soft corn, or heloma molle, usually occurs interdigitally and is caused by pressure from adjacent toes. The lesion becomes soft because of accumulated moisture in the web space.

A callus, or tyloma, is a diffuse, circumscribed hyperkeratotic lesion found on the plantar aspect of the foot, where friction and pressure occur. A callus may also result from weight changes and biomechanics. Symptoms range from generalized burning to severe pinpoint pain.  This painful lesion is usually found directly under the head of the involved metatarsal. Such lesions may result from plantar declination of the bone or may be associated with arthritic changes or trauma.

Custom orthotics will reestablish proper weight distribution and gait function thereby alleviating excessive or abnormal pressures on the foot.  Sometimes padding or supporting affected areas may be necessary