Surgical Approach Does Not Impact Instability After Total Hip Arthroplasty: A Meta-analysis .
Use of Surgical Approach Is Not Associated With Instability After Primary Total Hip Arthroplasty: A Meta-analysis Comparing Direct Anterior and Posterolateral Approaches
J Am Acad Orthop Surg . 2021 Nov 15;29(22):e1126-e1140.A meta-analysis of 25 studies, including 5 randomized controlled trials, of 7,172 patients undergoing total hip arthroplasty via the direct anterior approach (DAA) or posterolateral (PL) approach was performed. The primary interest of interest was the incidence of postoperative dislocation rates. Secondary outcomes of interest included acetabular implant positioning and leg length discrepancies. There was no difference in the incidence of dislocations between the DAA and PL approaches. The DAA approach led to more acetabular components being placed in the "safe zone" but no significant difference was found between overall cup inclination or anteversion. No differences in leg length discrepancy were found between groups.
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