To report minimum 10-year follow-up patient-reported outcomes (PROS) in patients following primary hip arthroscopy in the setting of femoroacetabular impingement syndrome with acetabular microfracture, and 2) to report the survivorship, defined as non-conversion to total hip arthroplasty (THA) within the same period.
Data was prospectively collected and retrospectively analyzed on all patients who underwent a primary hip arthroscopy and received an acetabular microfracture between May 2009 and January 2011 and included in this study. Eligible patients completed preoperative patient-reported outcomes (PROS) questionnaires for the Modified Harris Hip Score (mHHS), Nonarthritic Hip Score (NAHS), the Hip Outcome Score – Sport-Specific Subscale (HOS-SSS), and the visual analog scale (VAS) for pain. Patients were excluded from this study if they had previous ipsilateral hip surgery, Tönnis osteoarthritis grade > 1, or previous hip conditions. The demographics, intraoperative findings, surgical procedures, PROs, and secondary surgeries were analyzed.
25 hips were included in the study. There were 10 hips (43.5%) from males and 13 hips (56.5%) from females. The average patient age at the time of surgery was 43.3 years ± 11.1 (25.5 – 65.6), and the follow-up time was 123.9 ± 2.3 months (120.0 – 128.1). All patients on average experienced significantly improvement between preoperative and postoperative PROs in the mHHS (P < 0.001), NAHS (P < 0.001), HOS-SSS (P = 0.004), and VAS for pain (P < 0.001). In total, 65.2% of the patients did not require conversion to THA.
Significant improvement in all PROs and survivorship over 65% were obtained following acetabular microfracture for the management of focal and full-thickness cartilage lesions in primary hip arthroscopy. Based on the results, acetabular microfracture seems to be a feasible and valid alternative for severe and focal cartilage defects.