title: [Surgical treatment of periprosthetic femur fracture after hip arthroplasty].
abstract: OBJECTIVE
  To investigate the surgical treatment results of periprosthetic femur fracture after hip arthroplasty.
  
  
  METHODS
  In the study, 10 patients from  Oct. 2006 to Jan. 2012 were treated surgically according to Vancouver classification, and their fracture union, hip function, pain in fracture site and lower  extremity length were evaluated postoperatively.
  
  
  RESULTS
  All the patients had full follow-up for 6 to 69 months (mean time: 35.1 months). All fractures  were united well with good alignment and no prosthesis loosing or internal fixation failure was discovered. Harris scores to assess hip function were 71 to  90 (mean: 79.8) and the excellent and good rate was 70%. VAS scores to evaluate pain in fracture site when walking were 0 to 3 (mean: 1.4). The lengths of  injured lower extremity were shorter by 0 to 2.5 cm than those of the contralateral side preoperatively [mean (1.6±0.9) cm]. The shortened lengths were  reduced to 0 to 1.8 cm postoperatively [mean (0.6±0.6) cm], which were statistically different from those of preoperation (P=0.002).
  
  
  CONCLUSIONS
  Although treatment of periprosthetic femur fracture after hip arthroplasty is a hard work, we can make individual therapy regiment based on the patient's  age, general condition, function demand and Vancouver classification. Surgical treatment can bring good results.
authors.affiliation: Department of Trauma and Orthopaedics, Peking University People's Hospital, Beijing, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Lu
authors.forename: Bao-guo
authors.initials: BG
authors.lastname: Jiang
authors.forename: Zhong-guo
authors.initials: ZG
authors.lastname: Fu
authors.forename: Dian-ying
authors.initials: DY
authors.lastname: Zhang
authors.forename: Tian-bing
authors.initials: TB
authors.lastname: Wang
authors.forename: Hai-lin
authors.initials: HL
authors.lastname: Xu
authors.forename: Feng
authors.initials: F
authors.lastname: Xue
authors.forename: Jian-hai
authors.initials: JH
authors.lastname: Chen
authors.forename: Pei-xun
authors.initials: PX
authors.lastname: Zhang
authors.forename: Yu
authors.initials: Y
authors.lastname: Dang
authors.forename: Ming
authors.initials: M
authors.lastname: Yang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D005264:Femoral Fractures / Q000209:etiology / Q000601:surgery; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D057068:Periprosthetic Fractures / Q000209:etiology* / Q000601:surgery*