INTRODUCTION: Hip arthroscopy is a common procedure in hip preservation surgery. Its complication rate is relatively low. This prospective multicentric study evaluates complication rate in patients undergoing primary hip arthroscopy. MATERIALS AND METHODS: The study cohort consisted of 908 patients mean age of 37 years (14-67 years). Patients were prospectively included in the study in the years 2009-2017. All complications were recorded and evaluated. The minimum follow-up was 36 months. Results were statistically evaluated and risk factors for complications were identified. RESULTS: The overall complication rate was 7.3% (67/908 cases), the minor complication rate of 4.9% (45/908 cases) and the major complication rate 2.4% (22/908 cases). The most common severe complications were iatrogenic cartilage damage and instrument breakage, while the most common minor complications were perineal hypoaesthesia and heterotopic ossifications. The conversion rate to total hip replacement was 4.2% (39/908 patients). CONCLUSION: Hip arthroscopy is a safe procedure with low complication rates. Surgeon training and experience greatly influence the complication rates.

Department of Childrens and Adults Orthopaedics and Traumatology 2Nd Medical Faculty Charles University and Motol Hospital 5 Uvalu 84 Prague 15006 Czech Republic

Orthopaedic Department Kromeriz Hospital Kromeriz Czech Republic

Orthopaedics and Traumatology Department University Hospital Pilsen Pilsen Czech Republic

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