title: Effect of dynamic hip system blade on the treatment of femoral neck fractures in elderly patients with osteoporosis.
abstract: OBJECTIVE
  To discuss the curative effect of the dynamic hip system blade (DHS-blade) on the treatment of femoral neck fractures in elderly patients with osteoporosis.
  
  
  METHODS
  A retrospective study was conducted to analyse the clinical data of 60 elderly patients with osteoporosis who had been treated for femoral neck fractures with DHS-blade in our department between September 2012 and February 2014. There were 22 males and 38 females with a mean age of (66.8±3.2) years. According to the Singh Index Classification, all the patients'Singh index was below level 3. The Harris criterion and function recovery after operation were analysed.
  
  
  RESULTS
  All patients were followed up for 12-17 months (mean 14 months). No femoral head necrosis, femoral neck shortening, internal fixation loosening or backing out of the nails occurred. Bone nonunion was found in one case and he had a good recovery after total hip arthroplasty. The time for fracture healing ranged from 3-6 months (average 3.5 months). According to Harris criterion, 35 cases were rated as excellent, 22 good, 2 fair and 1 poor. The Harris scale was significantly improved from 28.46±2.35 preoperatively to 91.98±3.26 at 6 months postoperatively (P<0.05).
  
  
  CONCLUSIONS
  DHS-blade, being minimally invasive, allowing earlier postoperative exercise and avoiding the complications elicited by traditional internal fixation, is advisable for treatment of femoral neck fractured patients with osteoporosis.
authors.affiliation: Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu 610041, China.
authors.forename: Wenbo
authors.initials: W
authors.lastname: Zhao
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
mesh_terms: D000368:Aged; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D005593:Fracture Fixation, Internal / Q000379:methods*; D017102:Fracture Healing; D006801:Humans; D008297:Male; D019060:Minimally Invasive Surgical Procedures; D058866:Osteoporotic Fractures / Q000601:surgery*; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome