Accurately depicts an injury to the hip joint with subsequent degeneration and total joint replacement. The first illustration depicts a full body x-ray showing the normal anatomy of the hip. The second shows an enlarged, cut-away view of the normal hip. The third image displays the degeneration of the joint with the acetabulum is worn away from chondrolysis and the femoral head is eburnated, or ground down. The final image presents the hip after a total hip joint replacement with prosthetic hip hardware.