Acetabular bone loss is common during revision total hip arthroplasty (THA). A new acetabular shell was developed with a goal of maintaining native hip center-of-rotation (COR) while achieving good fixation with standard instrumentation and technique. Previous radiographic studies have demonstrated the efficacy of this shell in lowering hip COR. In this case series, we demonstrate the use of this shell in patients undergoing difficult revision THAs. Based on these cases, we have presented how this offset COR acetabular shell may help bring down the hip COR in patients who undergo revision total hip arthroplasty with severe bone loss.
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