title: Intramedullary fixation of subtrochanteric fractures with long proximal femoral nail or long gamma nail: technical notes and preliminary results.
abstract: BACKGROUND
  The objective of this study was to prospectively evaluate the clinical outcome of traumatic subtrochanteric fractures fixed with long proximal femoral nail (PFN) or long gamma nail with particular emphasis on our experience of surgical techniques.
  
  
  METHODS
  We reviewed the results of 49 consecutive patients who had undergone intramedullary fixation specifically with a long PFN or a long gamma nail for traumatic subtrochanteric fractures in our hospital during a 2-year period from January 2003 to December 2004. The average age of the patients was 53 years. Clinical and radiographic analyses were performed when follow-up was made at 6 weeks, 12 weeks, 6 months, 1 year and 2 years.
  
  
  RESULTS
  All the 49 traumatic subtrochanteric fractures healed uneventfully except 1 case of delayed union. Walking and squatting ability was completely restored in every case at follow-up examination 6 months postoperatively. Among them, 32 fractures were successfully reduced with traction on a fracture table under fluoroscopy, but cerclage wiring or cable bandage through a small incision was needed in the other 17 cases. The average operative time was 46 minutes (range, 21 to 98). Eighteen Seinsheimer type II fractures were left unlocked distally, and static distal interlocking with 1 bolt was carried out in the other 31 cases. No complications such as cutout or breakage of the implants were encountered.
  
  
  CONCLUSIONS
  This study suggests that long PFN or long gamma nail is a reliable implant for subtrochanteric fractures, leading to high rate of bone union and minimal soft tissue damage. Intramedullary fixation has biological and biomechanical advantages, but the operation is technically demanding. Gradual learning and great patience is needed in order to make this method truly minimally invasive.
authors.affiliation: Department of Orthopaedic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
authors.forename: Lei-Sheng
authors.initials: LS
authors.lastname: Jiang
authors.forename: Lei
authors.initials: L
authors.lastname: Shen
authors.forename: Li-Yang
authors.initials: LY
authors.lastname: Dai
mesh_terms: D000328:Adult; D000368:Aged; D001858:Bone Nails; D005260:Female; D005500:Follow-Up Studies; D005594:Fracture Fixation, Intramedullary / Q000295:instrumentation*; D006620:Hip Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D016896:Treatment Outcome