title: [Analysis of complications in scoliosis surgery].
abstract: OBJECTIVE
  To analyze the complications occurred in scoliosis surgery and evaluate its prevention strategy.
  
  
  METHODS
  From June 2002 to May 2007, 86 cases of idiopathic scoliosis were treated. There were 21 male and 65 female with an average age of 17.8 years(range, from 8 to 22 years). According to Lenke classification, 33 cases were type 1, 10 type 2, 18 type 3, 5 type 4, 10 type 5 and 10 type 6. Five cases were Risser 0 to I, 20 cases II to III, 61 cases 1V to V. Cobb angles were from 45 degrees to 85 degrees (mean 60.35 degrees). The pedicle screw technique was used to correct all the scoliasis, and the results and complications were studied.
  
  
  RESULTS
  The average operation time was 3.2 hours and average blood loss volume was 1000 ml (800-2400 ml), 924 pedicle screws were inserted and the average postoperative Cobb angle was 18.46 degrees. All the patients were followed up for 5 to 40 months(mean 20.5 months). The complications were as following: 1 case of spinal cord injury; 25 screws misplaced; 2 cases of nerve root injury; 1 case of pleura injury; 1 case of superior mesenteric artery syndrome; 3 cases of wound infection; 2 cases of trunk decompensation; 1 case of junction kyphosis; 3 cases of implant loosening; 2 cases of pseudarthrosis; 1 case of crankshaft phenomenon; 2 cases of flatback syndrome.
  
  
  CONCLUSIONS
  Many kinds of complications may occur in scoliosis surgery. Exactitude procedures of diagnosis and surgery for the scoliosis are the key to decrease and prevent the complications related to the operation.
authors.affiliation: Department of Orthopaedics, the Sixth Hospital of Ningbog, Ningbo 315040, Zhejiang, China.
authors.forename: Rong-ming
authors.initials: RM
authors.lastname: Xu
authors.forename: Shao-hua
authors.initials: SH
authors.lastname: Sun
authors.forename: Wei-hu
authors.initials: WH
authors.lastname: Ma
authors.forename: Guan-yan
authors.initials: GY
authors.lastname: Liu
authors.forename: Yong-jie
authors.initials: YJ
authors.lastname: Gu
authors.forename: Lei
authors.initials: L
authors.lastname: Huang
authors.forename: Jiang-wei
authors.initials: JW
authors.lastname: Ying
authors.forename: Wei-yu
authors.initials: WY
authors.lastname: Jiang
mesh_terms: D000293:Adolescent; D000328:Adult; D001863:Bone Screws; D002648:Child; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control*; D008297:Male; D011183:Postoperative Complications / Q000517:prevention & control*; D012600:Scoliosis / Q000601:surgery*; D013119:Spinal Cord Injuries / Q000517:prevention & control; D013126:Spinal Nerve Roots / Q000293:injuries; D013478:Superior Mesenteric Artery Syndrome / Q000517:prevention & control