Reconstruction of the Anterior Acetabular Wall to Repair Symptomatic Defects Consecutive to Cup Malpositioning at Total Hip Arthroplasty

Lara Pozzi; Aude Lehnen; Fabian Kalberer; Christoph Meier; Peter Wahl

doi:10.1016/j.artd.2020.11.015

Reconstruction of the Anterior Acetabular Wall to Repair Symptomatic Defects Consecutive to Cup Malpositioning at Total Hip Arthroplasty

Arthroplast Today. 2020 Dec 25:7:260-263.e0. doi: 10.1016/j.artd.2020.11.015. eCollection 2021 Feb.

Authors

Lara Pozzi¹, Aude Lehnen^{1

2}, Fabian Kalberer¹, Christoph Meier¹, Peter Wahl¹

Affiliations

¹ Division of Orthopaedics and Traumatology, Cantonal Hospital Winterthur, Winterthur, Switzerland.
² Department of Surgery, Hospital Centre Biel, Biel, Switzerland.

Abstract

Iliopsoas impingement (IPI) causes persistent groin pain and functional impairment after total hip arthroplasty (THA). It is caused most often by an overhang of the cup. Psoas tenotomy may successfully treat IPI in overhangs <8 mm. Cup revision usually is recommended for larger overhangs. Muscle sparing reconstruction of the anterior acetabular wall may be an alternative when malposition of the cup at THA caused a bony defect that would persist after simple cup revision. The surgical technique and results from one patient are presented. The patient rapidly became asymptomatic and remained pain free at 2-year follow-up. Any bone substance defect of the acetabulum should be considered when evaluating treatment options for IPI after THA.

Keywords: Acetabular reconstruction; Iliopsoas impingement; Minimally invasive; Psoas tenotomy; Total hip arthroplasty.