Use of a DeVita pin to maintain reduction of a dislocated total hip prosthesis in a dog

A two-year-old, female spayed Labrador Retriever with bilateral coxofemoral osteoarthritis received an uncemented total hip prosthesis in her left hip . The acetabular component was positioned in a slightly anteverted position . Five weeks after implantation, following a traumatic incident, the prosth etic hip dislocated without disruption of the femoral or the acetabular com ponents. An open reduction of the luxation was performed, followed by a cap sulorraphy and placement of a DeVita pin to secure the reduction. The pin m igrated cranially to the epaxial musculature and was removed four weeks aft er its placement. One year after placing the DeVita pin, a followup examina tion found the animal not to be lame and without any physical or orthopaedi c abnormalities.