Early Outcome Comparison of the Posterior Approach and the Superior Approach for Primary Total Hip Arthroplasty

Arthroplasty Today
Taryn E LeRoyDaniel Ward

Abstract

The superior approach for total hip arthroplasty (THA) is a minimally invasive, tissue-sparing technique that may have clinical and economic benefits. The purpose of this study was to compare early outcomes between the posterior approach and the superior approach in primary THA. Our hypothesis was that the superior approach would have a noninferior length of stay (LOS), discharge destination, and blood loss compared with the posterior approach. All primary THAs performed by a single surgeon at one institution were retrospectively reviewed over a 2-year period (2015-2017). There were 676 patients, 40.4% of whom underwent a posterior approach and 59.6% underwent a superior approach. LOS, discharge destination, blood loss, and operating room time were analyzed. Gender, body mass index, and American Society of Anesthesiologists status were recorded and controlled. The posterior approach was independently associated with an almost threefold higher risk of prolonged LOS (>2 days, P < .001) (odds ratio: 2.90, 95% confidence interval: 1.87-4.49; P < .001). The mean LOS for the superior approach was 1.71 days vs 2.17 days for the posterior group (P < .001). Fewer patients in the superior approach cohort were discharged to a rehabilitati...Continue Reading

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