title: [Biomechanical reconstruction of the hip in metal-on-metal total hip resurfacing].
abstract: OBJECTIVE
  To analyze the effect of biomechanical reconstruction of the hip in metal-on-metal total hip resurfacing.
  
  
  METHODS
  Thirty patients undergoing hip resurfacing arthroplasties were enrolled in this study. The clinical outcomes of the patients were assessed according to the Harris Hip Score before and after the surgery, X-ray examinations and biomechanical reconstruction evaluations.
  
  
  RESULTS
  After the operation, the length of the patients' legs was shortened by a mean of 2.4 mm. and the femoral offset was decreased by a mean of 5.45 mm. No dislocation were be found in these patients. The preoperative Harris Hip Score was 36.69-/+7.16, significantly lower than that postoperative score (89.63-/+3.36, P<0.01).
  
  
  CONCLUSIONS
  Precise biomechanical reconstruction of the hip can be achieved in hip resurfacing arthroplasty, and the stability and functional restoration is guaranteed by large diameter prosthesis design.
authors.affiliation: Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangazhou, China.
authors.forename: Li-jun
authors.initials: LJ
authors.lastname: Lin
authors.forename: An-min
authors.initials: AM
authors.lastname: Jin
authors.forename: Guo-fang
authors.initials: GF
authors.lastname: Fang
authors.forename: Jian-yi
authors.initials: JY
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Ding
authors.forename: Wei-yi
authors.initials: WY
authors.lastname: Cheng
authors.forename: Ge-jin
authors.initials: GJ
authors.lastname: Wei
authors.forename: Qi
authors.initials: Q
authors.lastname: Li