Prostheses, Joint, Ankle, Talar Component
Definition : Implantable prostheses designed to replace the upper portion of the talus (i.e., the first bone of the foot that moves up [dorsiflexion] and down [plantar flexion]), a component of the ankle joint. These prostheses provide a partial substitution of the ankle articulation; they typically consist of a metal (e.g., cobalt or chromium alloy) device that is attached to the talus that serves as the bearing surface. Made of ceramics, polymers, or a combination of materials, the prostheses may be intended for implantation with or without bone cement. Talar component ankle joint prostheses are used in patients who suffer from osteoarthritis or rheumatoid arthritis, as well as after trauma.
Entry Terms : "Ankle Component Prostheses"
UMDC code : 16087