Adjusting the combined anteversion to maximize range of motion in total hip arthroplasty: Acetabular side or femoral side, which adjustment is more effective?
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چکیده
INTRODUCTION: Cup and stem positioning correlates each other in total hip arthroplasty (THA), and it is believed that optimal combined anteversion (CA), which is a sum of cup and stem anteversion (AV) angle, is about 40° – 60°. However, there are few studies that have compared which adjustment is more effective, changing a cup or a femoral stem to optimizing CA and increasing ROM. In this study, we compared the ROM resulting from various CA parameters by changing AV angles of cup and stem using a THA model that permits variations in femoral AV.
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