title: Single training session for first time pelvic C-clamp users: correct pin placement and frame assembly.
abstract: BACKGROUND
  Unstable pelvic fractures with associated haemodynamic instability are major contributors of mortality and morbidity after blunt trauma. The pelvic C-clamp is one of the methods for emergency skeletal stabilization for pelvic ring injuries with posterior instability. The application of this device is taught on courses, but it is seldom used. The safety and efficiency of C-clamp application by trained first time users is unknown. We hypothesised that the pelvic C-clamp cannot be safely positioned on a training model after one training session.
  
  
  METHODS
  A theoretical and a practical session on the application of the pelvic C-clamp was held within an interval of 11.2±4.4. Twenty-seven participants of various levels of training were assessed on accuracy and efficacy of the application of the pelvic C-clamp was applied to a pelvic model (Pelvic Trainer™).
  
  
  RESULTS
  70.4% of all participants were able to place both pins inside the safe zone, whilst 81.5% of all pins were positioned safe. 18.5% were considered to be in unsafe position. The distance to optimal target point was 9.6±7.8mm on the left (injured) hemipelvis and 8.7±7.8mm on the right (uninjured). The time needed for assembly was 99.7±39.7s, for placement it averaged at 133.9±74s.
  
  
  CONCLUSIONS
  The majority of pins were placed into the safe zone on a training model within 4 min after one training session. 18.5% dangerous pin placement within 11 days of the training requires careful consideration (risk/benefit) in the context of a critically injured dying patient.
authors: Medical University of Graz, Graz, Austria; John Hunter Hospital, Newcastle, NSW, Australia.
authors: Hildegard
authors: H
authors: Koller
authors: Zsolt J
authors: ZJ
authors: Balogh
mesh_terms: D001858:Bone Nails; D003422:Critical Care / Q000592:standards; D004493:Education / Q000458:organization & administration / Q000592:standards; D004501:Education, Medical / Q000592:standards* / Q000706:statistics & numerical data; D016267:External Fixators; D050723:Fractures, Bone / Q000150:complications / Q000601:surgery*; D005596:Fractures, Closed / Q000601:surgery; D006801:Humans; D009104:Multiple Trauma / Q000150:complications / Q000601:surgery; D010384:Pelvic Bones / Q000033:anatomy & histology / Q000293:injuries* / Q000601:surgery*; D012769:Shock; D013525:Surgical Instruments