Initial Results of an Acetabular Center Axis Registration Technique in Navigated Hip Arthroplasty with Deformed Acetabular Rims

Fig. (6) The ACA of the navigation system might abduct more than the true ACA, and the deviation in the cup inclination was increased in the case of large anteversion and insufficient removal of large anterior osteophytes. Frontal (A) and lateral (B) views.