Satisfaction, functional outcomes and predictors in hip arthroscopy: a cohort study.

INTRODUCTION: Hip arthroscopy is not always successful, leading to high rates of total hip arthroplasty (THA) after arthroscopy. The aim of this study was to identify risk factors for THA, revision arthroscopy and low patient satisfaction and to compare outcomes of the different procedures of primary hip arthroscopy. METHODS: A total of 91 primary hip arthroscopy procedures in 90 patients (66% female) were analysed. Data were gathered from patient files and a questionnaire was sent to patients including the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), modified Harris Hip Score (mHHS), the EuroQol 5-dimension and questions about return to sports, satisfaction and pain before and after surgery. Using regression analyses, predictive factors for the outcomes were identified. RESULTS: After a mean of 1.6 years, 4 patients (4%) underwent revision arthroscopy and 10 (11%) a THA. Of the responders (62%), 66% of the patients was satisfied to very satisfied about the surgery. Mean mHHS score was 75.3 (SE 1.9) and the mean WOMAC score was 81.0 (SE 2.8). Return to sports rate was 58%. A higher age was a significant predictor for lower satisfaction (p = 0.008) and a longer duration of symptoms was a significant predictor for worse mHHS outcome scores (p = 0.005). CONCLUSION: A higher age is a predictor for a lower satisfaction and a longer duration of symptoms before surgery has a negative influence on functional outcome. No risk factors for THA or revision arthroscopy were found and there were no significant differences in outcome measurements between the performed surgeries.

Synovial chondromatosis of the hip, a case report and literature review.

A case of giant synovial chondromatosis of the hip with extra-articular localisation in the ileopectineal bursa is presented and the literature concerning this condition is reviewed. Synovial chondromatosis is a rare condition of unknown aetiology. A literature search was performed to identify studies describing outcome after surgical treatment of synovial chondromatosis of the hip. Thirteen studies including two hundred-ninety patients could be included. Mean follow-up was fifty-six months. Seven out of two hundred-ninety developed a complication after surgical resection of the lesion. Recurrence rate of synovial chondromatosis is about 19%. Malignant transformation of synovial chondromatosis to chondrosarcoma is extremely rare. No wound infections were reported and avascular necrosis of the femoral head occurred in one patient who was treated with dislocation of the hip during surgery. After resection of synovial chondromatosis excellent functional outcome can be expected.