title: Correlation of obesity with patient-reported outcomes and complications after hip arthroscopy.
abstract: OBJECTIVE
  This study aimed to evaluate patient-reported outcomes and complications after hip arthroscopy in an obese population compared with a matched nonobese control group with a minimum 2-year follow-up, using the Modified Harris Hip Score (MHHS) and Nonarthritic Hip Score (NAHS).
  
  
  METHODS
  Data were analyzed from 21 consecutive obese patients (body mass index [BMI] ≥ 30) and 18 nonobese patients (BMI < 25) who underwent hip arthroscopy between 2009 and 2012 with a minimum follow-up of 2 years. Data collected included MHHS, NAHS, traction and intraoperative times, and postoperative complications.
  
  
  RESULTS
  Traction times were similar between obese and nonobese patients at 48 and 45 minutes (P = .51), respectively. Operative times were also similar at 54 and 51 minutes (P = .79), respectively. Each group had a statistically significant improvement in MHHS from baseline to final follow-up: 45 to 79 (P < .001) in the obese group and 49 to 81 (P < .001) in the nonobese cohort. Similarly, the NAHS showed significant improvement in each group from baseline to final follow-up: 43 to 75 (P < .001) in the obese cohort and 45 to 83 (P < .001) in the nonobese group. There was no difference between groups in MHHS or NAHS data. There were 8 complications in the obese group, most commonly deep vein thrombosis (DVT) and worsened pain, whereas the nonobese cohort had one complication (an instance of heterotopic ossification [HO]). Overall, obese patients had 11.1 times the risk of a complication developing than did nonobese patients (95% confidence interval, 1.2 to 99.7).
  
  
  CONCLUSIONS
  Hip arthroscopy in the obese patient population leads to improved short- to mid-term patient-reported outcomes similar to those seen in nonobese patients. Obese patients, however, are at a significantly increased risk of postoperative complications such as DVTs and worsened hip pain.
  
  
  METHODS
  Level IV, therapeutic case series.
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York, U.S.A.
authors.forename: Jason A
authors.initials: JA
authors.lastname: Collins
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York, U.S.A.
authors.forename: Bryan G
authors.initials: BG
authors.lastname: Beutel
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York, U.S.A.
authors.forename: Garret
authors.initials: G
authors.lastname: Garofolo
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York, U.S.A.. Electronic address: thomas.youm@nyumc.org.
authors.forename: Thomas
authors.initials: T
authors.lastname: Youm
mesh_terms: D000328:Adult; D001182:Arthroscopy / Q000009:adverse effects*; D015992:Body Mass Index; D005260:Female; D005272:Femur Neck / Q000601:surgery; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D061646:Operative Time; D063868:Patient Outcome Assessment; D011183:Postoperative Complications / Q000209:etiology; D014143:Traction / Q000706:statistics & numerical data*; D016896:Treatment Outcome