Total hip replacement (THR) is well established as a treatment modalit
y for dogs with noninfectious, nonneoplastic, disabling conditions of
the coxofemoral joint. Since the mid 1970s, a fixed-head prosthesis ha
s been used in this procedure. A modular prosthesis, which is based on
many of the technical advances found in human prostheses, now is avai
lable for use in veterinary medicine. The prosthesis, surgical instrum
entation, surgical technique, and clinical results have been evaluated
in a prospective study conducted at The Ohio State University's Colle
ge of Veterinary Medicine. The modular prosthesis provides results equ
al to or better than the fixed-head prosthesis.