Hypothesis: Revision hip arthroscopy is associated with unaddressed femoroacetabular impingement. The purpose of this study was to describe reasons for revision hip arthroscopy.

• 假设：髋关节镜治疗术后翻修与股骨髋臼侵犯有关。本研究目的为探讨髋关节镜治疗术后翻修原因。