Acetabular protrusio: a problem in depth
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Updated: Jun 30, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
1Center for Hip and Knee Surgery, Joint Replacement Surgeons of Indiana Research Foundation, Indiana University School of Medicine, 1199 Hadley Rd, Mooresville, IN 46158, USA.
Abstract:
We have found that positioning of the acetabular implant into the anatomic acetabular location is challenging and an important consideration. This can most easily be achieved with careful medial reaming, central bone grafting, and cup placement on the rim of the native socket supplemented with screw fixation. Our data suggest that uncemented acetabular components have better survivorship than cemented cups for the treatment of protrusio deformity about the hip.
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