Recent advances in cementless total hip arthroplasty using the AML prosthesis

This article describes the recent changes in preoperative planning, component design, and implementation technique of the AML prosthesis. Improvements in the acetabular component include changes in the bearing surface and design and improved polyethylene locking mechanisms. Although the design of the AML femoral component has not changed, the introduction of modular ceramic heads, new instrumentation, and a new technique of reaming the intramedullary canal 0.5 mm undersized to the diameter of the porous-surfaced portion of the prosthesis have improved the author's results. The templating technique described many seem elaborate, but experience has shown that this degree of attention to derail increases the success rate.