No relationship between acetabular cup ‘safe zone’ and dislocations

OK TO PLACE ACETABULAR CUP OUTSIDE “SAFE ZONE?” (Orthopedics This Week)
In a retrospective study, Cleveland Clinic researchers set out to test the association between cup positioning and patient-reported functional and general health outcomes, as well as dislocation rate. Going in, the team hypothesized that cup positioning with reference to the native acetabular rim, rather than the reported safe zone, would affect dislocation risk and patient-reported outcomes. All participants received CT imaging when undergoing primary, unilateral total hip arthroplasty (THA) at a single academic center by...