Design and primary application of computer-assisted, patient-specific navigational templates in metal-on-metal hip resurfacing arthroplasty.

Total hip resurfacing arthroplasty is increasingly being used. One of its goals is to closely mimic the normal anatomy and normal biomechanics of the hip joint. Prosthesis location has a large impact on implant survival and patient function; but in conventional hip resurfacing arthroplasty, precise positioning sometimes cannot be achieved. We describe a novel method for ensuring accurate prosthesis implantation in hip resurfacing arthroplasty by means of 3-dimensional reconstruction and reverse engineering.