Staged Hip Arthroscopy With Labral Repair, Femoroplasty, and Capsular Plication Followed by Periacetabular Osteotomy for Hip Dysplasia Results in Improved Outcomes and 100% Survivorship at Minimum 2-Year Follow-Up.

PURPOSE

To assess patient-reported outcomes (PROs), clinically significant outcomes (CSOs), and survivorship after staged hip arthroscopy with labral repair, femoroplasty, and capsular plication followed by periacetabular osteotomy (PAO) for the management of femoroacetabular impingement syndrome and hip dysplasia (lateral center-edge angle ≤25°).

METHODS

A prospectively maintained database was queried to retrospectively identify patients who underwent staged primary hip arthroscopy and PAO between January 2018 and October 2021 and had a minimum 2-year follow-up. PROs collected included Hip Outcome Score Activities of Daily Living/Sports Subscale, international Hip Outcome Tool-12 item questionnaire, and visual analog scale for pain. CSO achievement for minimal clinical important difference and patient acceptable symptom state was determined through cohort-specific thresholds. Rates of reoperation, including, revision hip arthroscopy, and conversion to total hip arthroplasty were evaluated to determine short-term survivorship.

RESULTS

Thirty-nine hips met criteria for inclusion, of which 35 hips had minimum 2-year follow-up (89.7% compliance). Mean age was 25 ± 9.1 years, and 91.7% of patients were female. Respective pre- and postoperative radiographic outcomes were alpha angle 59.8° ± 5.9° to 39.7° ± 2.6°, Tönnis angle 14.6° ± 5.6° to -1.0° ± 2.9°, lateral center-edge angle 16.6° ± 5.5° to 36.6° ± 4.6°, and anterior center-edge angle 15.6° ± 9.1° to 36.1° ± 3.8°, with statistically significant differences pre- to postoperatively for all (P < .001). Patients demonstrated a significant improvement in all PROs pre- to postoperatively (P0. ≤ .004). Minimal clinical important difference and patient acceptable symptom state achievement rates for any PRO were 93.9% and 78.8%, respectively. There were no revision hip surgeries or conversion to total hip arthroplasty at a mean 2.7 ± 1.0-year follow-up. Four patients (11.1%) underwent hardware removal. One patient (2.8%) experienced a postoperative infection treated with incision and drainage.

CONCLUSIONS

Staged hip arthroscopy and PAO for the management of hip dysplasia demonstrated improvement in PROs, high CSO achievement rates, and 100% survivorship at minimum 2-year follow-up.

LEVEL OF EVIDENCE

Level IV, retrospective case series.