title: A retrospective analysis of reversed femoral Less Invasive Stable System (LISS) for treatment of subtrochanteric femoral fracture.
abstract: OBJECTIVE
  This retrospective study aimed at investigating the indications, the surgical techniques and clinical results of treatment for unstable subtrochanteric fractures with reverse Less Invasive Stable System-distal femur (LISS-DF).
  
  
  METHODS
  A total of twenty-six unstable subtrochanteric fracture patients were fixed with reverse LISS-DF from April 2005 to April 2008, including 17 (65%) males and 9 (35%) females with an average age of 43 years (ranged 35-56 years). Among them, 15 (57.7%) patients suffered road traffic accidents, and the remaining 11 (42.3%) patients had fall-related injuries. There were 16 patients with 32-A3.3 type, 4 with 32-A3.1 type and six with 32-A2.3 type fractures according to the AO classification.
  
  
  RESULTS
  All patients were followed up after surgery for 28 months (ranged 24-35 months). All of the incisions healed primarily, and no postoperative complications were found, such as coax vara and femoral head perforation of screws. The average recovery time of all patients was 4 months (ranged 2-7 months), and the average Harris score was 85 points (ranged 71-98 points).
  
  
  CONCLUSIONS
  Reverse LISS-DF is an effective operation for treatment of unstable subtrochanteric femoral fracture (AO classification, 32-A3.3, 32-A3.1 and 32-A2.3). Its advantages are minimal blood loss and reliable fixation.
authors.affiliation: Department of Emergency Traumatology, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai 200120, China.
authors.forename: Guofeng
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Emergency Traumatology, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai 200120, China. Electronic address: zengchun_li@hotmail.com.
authors.forename: Zengchun
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Emergency Traumatology, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai 200120, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Han
authors.affiliation: Department of Emergency Traumatology, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai 200120, China.
authors.forename: QingYou
authors.initials: Q
authors.lastname: Lu
mesh_terms: D000328:Adult; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D005593:Fracture Fixation, Internal / Q000295:instrumentation / Q000379:methods*; D017102:Fracture Healing; D006620:Hip Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies
keywords: Internal fixation device; Retrospective study; Reverse Less Invasive Stable System-distal femur; Subtrochanteric femoral fractures