Prostheses, Joint, Wrist, Radial/Ulnar Head
Definition : Implantable prostheses designed for partial replacement of the distal radioulnar head (i.e., radioulnar joint) at the wrist joint. These prostheses typically consist of two pieces: a metal (e.g., cobalt-chrome) ball resembling the ulnar head and a titanium stem that is surgically introduced in a hole drilled in the intramedullary canal of the ulnar bone; the stem may or may not be cemented to the bone. Radial/ulnar head partial wrist prostheses are intended to replace a damaged ulnar head, restoring it and stabilizing it relative to the distal radioulnar joint. Radial/ulnar head partial wrist prostheses used to treat pain caused by rheumatoid and degenerative arthritis or after trauma (e.g., fracture) of the radioulnar joint, typically after ulnar head resection arthroplasty.
Entry Terms : "Prostheses, Radial/Ulna Head" , "Prostheses, Wrist, Hemi-, Ulnar" , "Wrist Component Prostheses" , "Prostheses, Ulnar Head" , "Prostheses, Radial Head"
UMDC code : 16259