Fig. 1From: The use of intraoperative cell salvage in total hip arthroplasty with subtrochanteric shortening osteotomy for the treatment of high hip dislocation: a retrospective cohort studyThe center of rotation (COR) height and femoral offset (FO) were measured on the AP pelvic radiograph. The COR height (ab): the perpendicular distance between the center of rotation and the interteardrop line. FO (ac): the perpendicular distance between the center of rotation and the axis of the femoral shaftBack to article page