title: [Improved EPSTR for prevention of dislocation after total hip arthroplasty].
abstract: OBJECTIVE
  To explore the effect of improved EPSTR on prevention of dislocation after total hip arthroplasty.
  
  
  METHODS
  From January 2006 to May 2007, the posterior structures were repaired using improved EPSTR in 85 cases (87 hips) of total hip arthroplasty, which involved 39 males and 46 females, with an average age of 69.5 years (range, from 62 to 85 years). Fifty-eight cases were of fresh femoral neck fracture, 25 cases were of aseptic necrosis of femoral head, 3 cases were of osteoarthritis, 1 case was of a internal fixation failure of femoral intertrochanteric fracture.
  
  
  RESULTS
  All 85 cases were followed up for 8-24 months (average 15 months). None of these 85 patients had posterior dislocation, external rotation contracture and greater trochanter fracture. The Harris score at the 6th month postoperatively was 89.2 +/- 4.5.
  
  
  CONCLUSIONS
  Improved EPSTR is an effective, simple and timesaving method in prevention of dislocation after total hip arthroplasty, it has clinical application value.
authors.affiliation: Department of Orthopaedics, the Third Affiliated Hospital of Wenzhou Medical College, Ruian 325200, Zhejiang, China. liqi20051166@163.com
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Li-cheng
authors.initials: LC
authors.lastname: Zhang
authors.forename: Guo-jing
authors.initials: GJ
authors.lastname: Yang
authors.forename: Chun-yuan
authors.initials: CY
authors.lastname: Cai
authors.forename: Cheng-xuan
authors.initials: CX
authors.lastname: Tang
authors.forename: Wei-liang
authors.initials: WL
authors.lastname: Wang
authors.forename: Li-xing
authors.initials: LX
authors.lastname: Lin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D005271:Femur Head Necrosis / Q000601:surgery*; D006617:Hip Dislocation / Q000517:prevention & control*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery*; D011475:Prosthesis Failure; D016896:Treatment Outcome