title: [RISK FACTORS FOR INCIDENTAL DUROTOMY DURING LUMBAR SURGERY].
abstract: OBJECTIVE
  To evaluate the risk factors for incidental durotomy (ID) during lumbar surgery.
  
  
  METHODS
  Eighty-six patients with ID and 86 patients with no ID (who were matched 1:1 in surgeons and surgery time) were selected from 2 235 patients who underwent lumbar surgery between January 2010 and December 2012. The gender, age, body mass index, history of smoking, alcoholism, nonsteroidal drug use, the etiology, lumbar surgery history, revision surgery, surgical approach, osteoporosis, diabetes, and surgical procedure were compared between 2 groups. Logistic regression analysis was applied to analyze the risk factors for ID.
  
  
  RESULTS
  There was significant difference (P < 0.05) in etiology, surgical approach, revision surgery, lumbar surgery history, and surgical procedure between patients with ID and patients with no ID, which were then included in multivariate analysis. Logistic regression analysis demonstrated that lumbar surgery history, revision surgery, and minimal invasive surgery were risk factors for ID during lumbar surgery (P < 0.05).
  
  
  CONCLUSIONS
  Lumbar surgery history, revision surgery, and minimal invasive surgery were risk factors for ID during lumbar surgery, thus surgery for patients with the above histories should be carefully performed to prevent ID.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yang
authors.forename: Xinlong
authors.initials: X
authors.lastname: Ma
authors.forename: Hongbin
authors.initials: H
authors.lastname: Jin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004388:Dura Mater / Q000601:surgery*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology; D008159:Lumbar Vertebrae / Q000601:surgery*; D008161:Lumbosacral Region / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D015999:Multivariate Analysis; D011183:Postoperative Complications / Q000453:epidemiology; D012086:Reoperation; D012189:Retrospective Studies; D012307:Risk Factors