Long-term Outcome of Charnley Total Hip Arthroplasty Using First- to Third- Generation Cementing

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We present the outcome of 136 Charnley total hip arthroplasty using first- to third- generation cementing. First-generation refers to the conventional Charnley method. Second-generation uses multiple small anchor holes, doublecementing on the acetabular side, and an intramedullary plug. Retrograde filling using a cement gun on the femoral side. In third-generation, a pressurizer is also used. We reviewed the long-term outcome in 102 arthroplasties using first and second generation and middle-term outcome of 34 arthroplasties using third generation. At 27 years after surgery, survival was 61% with loosening of the acetabular component as an end point, and 92% with that of the femoral stem using first and second generation. At 20 years, survival was 83% and 97% using second generation. Radiolucency scores using our evaluation at 5 years suggest that long-tem effects of third generation can prospectively surpass those of second generation.
日本関節病学会の論文