title: Patients undergoing surgical hip dislocation for the treatment of acetabular fractures show favourable long-term outcome.
abstract: OBJECTIVE
  The aims of this study were to determine the cumulative ten-year survivorship of hips treated for acetabular fractures using surgical hip dislocation and to identify factors predictive of an unfavourable outcome.
  
  
  METHODS
  We followed up 60 consecutive patients (61 hips; mean age 36.3 years, standard deviation (sd) 15) who underwent open reduction and internal fixation for a displaced fracture of the acetabulum (24 posterior wall, 18 transverse and posterior wall, ten transverse, and nine others) with a mean follow-up of 12.4 years (sd 3).
  
  
  RESULTS
  Clinical grading was assessed using the modified Merle d'Aubigné score. Radiographic osteoarthritis was graded according to Matta. Kaplan-Meier survivorship and a univariate Cox-regression analysis were carried out using the following endpoints: total hip arthroplasty, a Merle d'Aubigné score of < 15 and/or progression of osteoarthritis.
  
  
  CONCLUSIONS
  The ten-year cumulative survivorship was 82% (95% confidence interval 71 to 92). Predictors for the defined endpoints were femoral chondral lesions, marginal impaction, duration of surgery, and age of patient. Cite this article:Bone Joint J2017;99-B:508-15.
authors.affiliation: University of Bern, Freiburgstrasse 16, 3010 Bern, Switzerland.
authors.forename: P C
authors.initials: PC
authors.lastname: Haefeli
authors.affiliation: University of Southern California, Keck School of Medicine, 1975 Zonal Ave., Los Angeles, CA 90033, USA.
authors.forename: G S
authors.initials: GS
authors.lastname: Marecek
authors.affiliation: University of Bern, Freiburgstrasse 16, 3010 Bern, Switzerland.
authors.forename: M J B
authors.initials: MJ
authors.lastname: Keel
authors.affiliation: University of Bern, Freiburgstrasse 16, 3010 Bern, Switzerland.
authors.forename: K A
authors.initials: KA
authors.lastname: Siebenrock
authors.affiliation: University of Bern, Freiburgstrasse 16, 3010 Bern, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Tannast
mesh_terms: D000077:Acetabulum / Q000293:injuries* / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D005260:Female; D005500:Follow-Up Studies; D005593:Fracture Fixation, Internal / Q000379:methods*; D050723:Fractures, Bone / Q000601:surgery*; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000209:etiology; D011379:Prognosis; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
keywords: Acetabulum; Hip; Surgical hip dislocation; Trauma