title: Pelvic fractures resulting from snowboarding.
abstract: BACKGROUND
  Information regarding pelvic fractures sustained during snowboarding is scant.
  
  
  OBJECTIVE
  To analyze the epidemiologic data, injury patterns, and types of pelvic fractures sustained during snowboarding.
  
  
  METHODS
  Case series; Level of evidence, 4.
  
  
  METHODS
  We analyzed the epidemiologic factors, injury patterns, and types of pelvic fractures in 145 patients with snowboarding-related pelvic fractures who were admitted to our institution from the 1998-1999 to the 2006-2007 ski season.
  
  
  RESULTS
  The incidence of snowboarding-related pelvic fractures was 0.102 per 10 000 ski lift tickets, which amounted to 2% of all snowboarding-related fractures (fifth most common type of fracture among all snowboarding-related fractures). Of the pelvic fractures, 85.5% were stable (type A according to the Tile classification) and 14.5% were unstable (types B and C according to the Tile classification). Isolated sacral fractures had the second-highest incidence (24.1%) after pubic bone and/or ischium fractures (46.9%). A distinct female prevalence was seen (52.4%). Jumps and isolated falls were the main mechanisms of injury (80%), and the incidence of collision was significantly higher in the unstable group than in the stable group (P = .037). In all, 57.9% patients classified their skill level as "intermediate," and only 9.7% of patients had received professional snowboarding lessons. A total of 30 subjects (20.8%) had other injuries along with pelvic fractures; the patients with multiple injuries were significantly more frequent in the unstable group than in the stable group (P = .035).
  
  
  CONCLUSIONS
  Pelvic fractures resulting from snowboarding accidents included a higher proportion with isolated sacral fractures in the stable group and a lower prevalence of associated injuries in the unstable group compared with those resulting from other causes.
authors.affiliation: Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu, Gifu, 501-1194 Japan. h-ogawa@k7.dion.ne.jp
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Ogawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sumi
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Sumi
authors.forename: Katsuji
authors.initials: K
authors.lastname: Shimizu
mesh_terms: D000007:Abdominal Injuries / Q000453:epidemiology; D000058:Accidental Falls / Q000706:statistics & numerical data; D000293:Adolescent; D000328:Adult; D001265:Athletic Injuries / Q000453:epidemiology*; D005260:Female; D050723:Fractures, Bone / Q000453:epidemiology*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009104:Multiple Trauma / Q000453:epidemiology; D010384:Pelvic Bones / Q000293:injuries*; D011481:Protective Clothing; D012865:Skiing / Q000293:injuries* / Q000706:statistics & numerical data; D014954:Wrist Injuries / Q000453:epidemiology; D055815:Young Adult