2007 The Swedish Ankle Arthroplasty Register

Description: Of the 531 prostheses implanted, 101 had been revised by June 15, 2006. The overall survival rate at 5 years was 0.78 (95%CI: 0.74-0.82). For the three surgeons who had inserted the majority of the STAR ankles, the survival rates became significantly higher after the first 30 cases had been performed and was estimated to be 0.86 (0.80-0.93) at 5 years. Lower age at index surgery implied increased risk of revision whereas diagnosis or gender did not. INTERPRETATION: Ankle replacement is a valuable alternative to arthrodesis. However, replacing an ankle is a demanding procedure and the survival is not comparable to that after hip or knee replacement. It is obvious that with increasing experience, the results -- including prosthetic survival -- will improve.
The Swedish Ankle Arthroplasty Register: An analysis of 531 arthroplasties between 1993 and 2005. Henricson A, Skoog A, Carlsson A. Acta Orthop. 2007 Oct;78(5):569-74.