Taper Technology in Total Hip Arthroplasty
Prior to the utilization of the Morse taper in total hip arthroplasty, head and neck fixation utilized acrylic glue and threaded fixation. Early implants, such as the Boutin hip, resulted in early catastrophic failure, usually because of fracture of the ceramic femoral head2. This resulted in the Charnley monoblock femoral stem to eliminate head and neck implant failures. As total hip designs improved, modular components were introduced to allow for more intraoperative variability.