Unboxing the components of an anterior total hip replacement surgery

Dr. Dan Lieberman unboxes a Stryker total hip replacement implant. The usual hip replacement has four components. The stem is the Stryker Accolade II. The trunion mates with the ball to make a cold weld to hold the implant together. The body has 2 parts, a hydroxyappetite coated upper part allows for bone growth. The shape of the body was determined by CT reconstructions for a tight fit. The cup is the shell which holds the ball.The cup is also covered with hydroxyappetite to allow bone growth into the socket. There are holes to permit a screw to temporarily fix the cup into the acetabulum. Thinner is better for a shell because it allows a bigger ball, which reduces the risk of dislocation. The cup is lined by a polyethylene liner. The plastic is radiated to make it stronger. The Ceramic head fits inside the cup and replaces the ball. Ceramic is better than metal because it wears better according to registry data.