Vertical or Horizontal (Bikini) Incision for Direct Anterior Total Hip Arthroplasty: Outcomes of Early (<90 day) Revision.

ABSTRACT

BACKGROUND: The horizontal 'bikini' incision for direct anterior approach (DAA) total hip arthroplasty has gained popularity due to its early wound healing characteristics; however, the nonextensile nature of this approach may pose problems in treating early complications. This study sought to characterize the outcomes of early revision (<90 days) in patients who underwent anterior hip arthroplasty utilizing either a traditional longitudinal incision or a horizontal (bikini) incision. METHODS: This retrospective study identified patients who underwent DAA primary total hip arthroplasty with a subsequent DAA revision within 90 days. Patients were divided into two cohorts based on the orientation of their incision either 'longitudinal incision' (in accordance with the Smith Peterson interval) or 'horizontal bikini incision' (in accordance with the hip flexion crease). RESULTS: There were 74 patients who underwent DAA revision arthroplasty within 90 days of primary arthroplasty; 65 had a longitudinal incision, and 9 had a horizontal (bikini) incision. In the longitudinal incision group, 2 patients (3.1%) required plastic surgery closure, and 11 patients (16.9%) required additional operations. Of the 9 bikini incision patients, 6 patients required the assistance of plastic surgery closure, and 7 patients required multiple orthopaedic operations. CONCLUSIONS: Our study suggests that a horizontal bikini incision is less forgiving in the early postoperative period if a more extensile exposure is needed for revision surgery, as measured by the need for plastic surgery and additional returns to the operating room. In our cohort, the longitudinal incision allowed for the management of early surgical complications with less morbidity.