title: Dynamic hip screw versus 3 parallel screws in the treatment of garden 1 + 2 and garden 3 + 4 cervical hip fractures.
abstract: OBJECTIVE
  The main objective of this study was to evaluate the failure rate following operations of undisplaced and displaced cervical hip fractures with a dynamic hip screw compared with 3 parallel screws.
  
  
  METHODS
  The study was retrospective. The minimum follow-up time was 1 year. The data tta collested between January 1990 and December 1993.
  
  
  METHODS
  University Hospitals.
  
  
  METHODS
  A total of 456 patients (352 women and 104 men) with cervical hip fractures were included. The mean age was 80 years (range 51-100 years).
  
  
  METHODS
  This was internal fixation of the fractured hip with a dynamic hip screw or 3 parallel screws.
  
  
  METHODS
  Failure was defined as nonunion, fixation failure or avascular necrosis and reoperation was found indicated. The 3 months mortality rate, the wound infection rate, the delay between admission and time of surgery and the blood transfusion requirement were also recorded.
  
  
  RESULTS
  A total of 456 cervical hip fractures were operated with a dynamic hip screw or 3 parallel screws. The failure rate for fractures treated with a dynamic hip screw was 14/98 = 14% for Garden 1 + 2 fractures and 43/108 = 40% for Garden 3 + 4 fractures. The failure rate for fractures treated with 3 parallel screws was similar: 23/154 = 15% for Garden 1 + 2 fractures and 38/196 = 40% for Garden 3 + 4 fractures. The average follow-up time was 2.5 years.
  
  
  CONCLUSIONS
  Operation of cervical hip fracture with a dynamic hip screw or 3 parallel screw seem to give similar results.
authors.affiliation: Department of Orthopaedic Surgery, Rigshospitalet, University of Copenhagen, Denmark.
authors.forename: N
authors.initials: N
authors.lastname: Levi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001863:Bone Screws; D005260:Female; D005593:Fracture Fixation, Internal / Q000379:methods*; D006620:Hip Fractures / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D017211:Treatment Failure