Patient-Centered Outcomes After Hip Arthroscopy for Femoroacetabular Impingement and Labral Tears Are Not Different in Patients With Normal, High, or Low Femoral Version

Purpose: The purpose of this study was to determine whether outcomes after hip arthroscopy were different based on femoral version. Methods: The inclusion criteria were diagnosis of femoroacetabular impingement (FAI) based on clinical examination and/or imaging findings and preoperative measurement of femoral version by magnetic resonance imaging. For this study, the definition of FAI was a positive impingement sign, a positive flexioneabductioneexternal rotation examination finding, or radiographic signs of impingement. A query of a prospective data registry identified 180 patients who matched the inclusion and exclusion criteria. Group 1 had version of less than 5 degrees (n = 48), group 2 had version of 5 degrees to 15 degrees (n = 84), and group 3 had version greater than 15 degrees (n = 48). The mean age of the patients was 35 years (range, 18 to 61 years). Results: On radiographic examination, the mean alpha angle for all patients' injured hips was 63 degrees (range, 42 degrees to 88 degrees). The mean center-edge angle was 30 degrees (range, 20 degrees to 43 degrees), and mean femoral version was 9.9 degrees (range,degrees 16 degrees to 29 degrees). There was no significant difference in age, alpha angle, or center-edge angle among the 3 version groups. A significant difference in psoas release procedures (psoas impingement) was seen with increasing femoral version. The mean follow-up period was 30 months (range, 18 to 47 months). Patient-reported functional outcomes were not statistically different among the groups. Conclusions: Patient-reported functional outcomes after hip arthroscopy forlabral tears and FAI were not different based on femoral version in this population. Although some differences were observed regarding intraoperative findings, these also did not result in differences in patient outcomes reported at a mean follow-up of 2 years.