title: Effect of centre-edge angle on clinical and quality of life outcomes after arthroscopic acetabular labral debridement.
abstract: The aim of this study was to compare clinical and quality of life outcomes following arthroscopic acetabular labral debridement between patients with different centre-edge (CE) angle.
  
  
  
  A total of 79 patients who underwent hip labral debridement were enrolled in this study. Radiographic measurements of CE angle were collected, and patients were assigned into a normal group (25° < CE angle <40°, n = 68) and dysplasia group (CE angle <20°, n = 11). Clinical outcomes were evaluated by modified Harris Hip Score (mHHS), Hip Outcome Score (HOS) for activities of daily living (ADL) and sports and Short Form 12 (SF-12).
  
  
  
  At the final follow-up, the normal group showed significant improvements in mHHS, HOS (ADL and sports) and SF-12 (P < 0.05). However, the dysplasia group revealed significant improvements in mHHS, HOS (ADL) and SF-12 physical component summary (PCS) (P < 0.05) and no significant changes in HOS sports and SF-12 mental component summary (MCS) (P > 0.05). Additionally, there was a greater improvement in clinical scores post-operatively in the normal group compared with the dysplasia group (P < 0.05).
  
  
  
  Arthroscopic acetabular labral debridement resulted in significantly greater clinical and quality of life outcomes in patients with CE angle >25° compared with patients with CE angle < 20°.
authors.affiliation: Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China.
authors.forename: Ziying
authors.initials: Z
authors.lastname: Wu
authors.affiliation: Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China.
authors.forename: Shiyi
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China.
authors.forename: Yunxia
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China. jiwuchenhuashan@163.com.
authors.forename: Jiwu
authors.initials: J
authors.lastname: Chen
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D002358:Cartilage, Articular / Q000601:surgery; D003646:Debridement / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000601:surgery*; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D016896:Treatment Outcome
keywords: Centre-edge angle; Dysplasia; Labral debridement