Acetabular Exposure Is Enhanced With Self-Retaining Retractors During Direct Anterior Total Hip Arthroplasty

Orthopedics. 2021 Mar-Apr;44(2):e309-e313. doi: 10.3928/01477447-20201119-05. Epub 2020 Nov 25.

Abstract

Acetabular exposure for direct anterior (DA) total hip arthroplasty (THA) can be performed using hands-free, self-retaining retractors. No current study quantitatively compares this self-retaining technique with the traditional manual technique. In 65 consecutive DA THA hips, two "best-view" digital photographs were taken of the exposure-one using Charnley/self-retaining retractors and one using a traditional three-retractor manual technique. Percent exposure of the polyethylene liner was calculated. Percent acetabular exposure averaged 80.0% using the Charnley/self-retaining technique, compared with 73.1% using the manual technique (P=.0002). A hands-free technique provides superior acetabular exposure compared with the manual technique. Increasing body mass index predicts decreasing exposure with both techniques. [Orthopedics. 2021;44(2):e309-e313.].

MeSH terms

  • Acetabulum / surgery*
  • Aged
  • Arthroplasty, Replacement, Hip / instrumentation*
  • Hip Prosthesis
  • Humans
  • Male
  • Middle Aged
  • Polyethylene

Substances

  • Polyethylene