Undetected intraoperative pelvic movement can lead to inaccurate acetabular cup component placement during total hip arthroplasty.

Vigdorchik JM, Muir JM, Buckland A, Elbuluk A, Alguire A, Schipper J, Schwarzkopf R. Undetected intraoperative pelvic movement can lead to inaccurate acetabular cup component placement during total hip arthroplasty: a mathematical simulation estimating change in cup position.