ABSTRACT
Total hip arthroplasty (THA) is one of the most successful procedures of the last century providing excellent long-term results. In modern THA, however, not only the choice of approach determines the postoperative outcome, but also the type of implant. Short stems have already been developed decades ago, in order to ensure bone and soft-tissue sparing implantation. Because of the heterogeneity of different short-stem designs, a universally applicable classification seems necessary. Shortening of a conventional stem might change its biomechanical properties and doesn't correspond to the philosophy of modern short stems of the latest generation. Unlike conventional straight stems with classical diaphyseal anchorage, short stems focus on anchoring in the metaphysis. Indications for short-stem THA have been constantly expanding in the last few years. Originally short stems were developed and thus have been primarily used in young, active osteoarthritis patients with high demands regarding postoperative function.
