title: Complications after 147 consecutive vertebral column resections for severe pediatric spinal deformity: a multicenter analysis.
abstract: METHODS
  Retrospective multicenter review.
  
  
  OBJECTIVE
  Determine the definition, indications, results, and outcomes, focusing on complications of vertebral column resection (VCR) for severe pediatric spinal deformity.
  
  
  BACKGROUND
  The strict definition of the VCR procedure, indications, results, outcomes, and the numerous, potentially serious complications are unknown or controversial, and a large multicenter review has never been performed.
  
  
  METHODS
  A total of 147 patients treated by 7 pediatric spinal deformity surgeons were reviewed-seventy-four females and 73 males, with an average age of 13.7 years, an average of 1.6 (range, 1-5) vertebrae resected, and an average follow-up of 17 months (range, 0.5-64 mo). The strict definition of VCR used was a "3-column circumferential vertebral osteotomy creating a segmental defect with sufficient instability to require provisional instrumentation."
  
  
  RESULTS
  Indications for a VCR were divided into 5 diagnostic categories: kyphoscoliosis (n = 52), severe scoliosis (n = 37), congenital deformity (n = 28), global kyphosis (n = 17), and angular kyphosis (n = 13). Eighty-four primary and 63 revision patients with 174 operative procedures, 127 posterior-only (17 staged), and 20 patients combined anterior-posterior (10 staged) were reviewed. Average preoperative upright, flexibility, and postoperative Cobb measures (% correction or average kyphosis decrease) were kyphoscoliosis: 91°, 65°, 44° (51% coronal), 104°, 81°, and 47° (decrease, 57° sagittal); severe scoliosis: 104°, 78°, and 33° (67%); congenital deformity: 47°, 38°, 22° (46% coronal), 56°, 48°, and 32° (decrease, 24° sagittal); global kyphosis: 101°, 79°, and 47° (decrease, 54°); and angular kyphosis: 88°, 90°, and 38° (decrease, 50°), respectively. Operative time averaged 545 minutes (range, 204-1355 min) and estimated blood loss averaged 1610 mL (range, 50-8244 mL) for an average 65% blood volume loss (range, 6%-316%). Eighty-six patients (59%) developed a complication, 39 patients (27%) having an intraoperative neurological event (spinal cord monitoring change or failed wake-up test); however, no patient had complete permanent paraplegia.
  
  
  CONCLUSIONS
  A total of 147 consecutive pediatric VCRs performed by 7 surgeons demonstrated excellent radiographical correction. However, these complex reconstructions were associated with a 59% complication rate, thus emphasizing the challenging nature of these patients and procedures.
authors: Department of Orthopaedic Surgery, Washington University School of Medicine, 660 S Euclid Ave., St. Louis, MO, 63110, USA. lenkel@wudosis.wustl.edu
authors: Lawrence G
authors: LG
authors: Lenke
authors: Peter O
authors: PO
authors: Newton
authors: Daniel J
authors: DJ
authors: Sucato
authors: Harry L
authors: HL
authors: Shufflebarger
authors: John B
authors: JB
authors: Emans
authors: Paul D
authors: PD
authors: Sponseller
authors: Suken A
authors: SA
authors: Shah
authors: Brenda A
authors: BA
authors: Sides
authors: Kathy M
authors: KM
authors: Blanke
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000453:epidemiology / Q000209:etiology*; D007738:Kyphosis / Q000151:congenital / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D061646:Operative Time; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology*; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D012600:Scoliosis / Q000151:congenital / Q000000981:diagnostic imaging / Q000601:surgery*; D013131:Spine / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery*; D014481:United States / Q000453:epidemiology