title: [Short-term effectiveness of total hip arthroplasty for post-traumatic osteoarthritis secondary to acetabular fracture].
abstract: OBJECTIVE
  To discuss the short-term effectiveness of total hip arthroplasty (THA) for post-traumatic osteoarthritis secondary to acetabular fracture.
  
  
  METHODS
  Between January 2004 and March 2012, the clinical data was analyzed retrospectively from 12 cases (13 hips) of post-traumatic osteoarthritis secondary to acetabular fracture undergoing THA. Of 12 patients, 6 were male and 6 were female, with an average age of 55.6 years (range, 40-68 years). The locations were the left hip in 5 cases, the right hip in 6 cases, and bilateral hips in 1 case. The interval between acetabular fracture and THA was 65.7 months on average (range, 12-240 months). The preoperative hip Harris score was 48.8 +/- 9.5.
  
  
  RESULTS
  The incisions healed by first intention. No deep vein thrombosis and infection occurred postoperatively. Ten cases were followed up 1-7 years (mean, 4.8 years). The hip Harris score was 86.5 +/- 8.6 at last follow-up, showing significant difference when compared with preoperative score (t = 10.520, P = 0.006). X-ray films showed no acetabular prosthesis instability. Stem subsidence (2 mm) occurred in 1 case, peri-prosthetic osteolysis in 2 cases, and heterotopic ossification in 2 cases (Brooker type I and type II in 1 case, respectively).
  
  
  CONCLUSIONS
  THA has satisfactory short-term effectiveness for post-traumatic osteoarthritis secondary to acetabular fracture. The good effectiveness is based on strict case selection, pathological evaluation, and the proper acetabular reconstruction.
authors.affiliation: Department of Joint Surgery, Ningbo No. 6 Hospital, Ningbo Zhejiang, 315040, P R China. jhzhang933@sohu.com
authors.forename: Junhui
authors.initials: J
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Ling
authors.forename: Hua
authors.initials: H
authors.lastname: Liu
authors.forename: Kun
authors.initials: K
authors.lastname: Tao
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Zeng
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: He
authors.forename: Zhenglin
authors.initials: Z
authors.lastname: Di
authors.forename: Jianxiang
authors.initials: J
authors.lastname: Feng
authors.forename: Rongming
authors.initials: R
authors.lastname: Xu
mesh_terms: D000077:Acetabulum / Q000293:injuries* / Q000601:surgery; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods*; D016025:Bone Transplantation; D005260:Female; D005500:Follow-Up Studies; D006620:Hip Fractures / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000209:etiology / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome