title: Fracture-related thoracic kyphotic deformity correction by single-stage posterolateral vertebrectomy with circumferential reconstruction and stabilization: Outcomes in 30 cases.
abstract: METHODS
  This paper is a retrospective chart review.
  
  
  OBJECTIVE
  This study assesses single-stage thoracic vertebrectomy with circumferential reconstruction and stabilization. Preoperative and postoperative thoracic kyphotic angles and other outcomes are analyzed.
  
  
  BACKGROUND
  Pathologic and traumatic thoracic vertebral body fracture deformity can be corrected by an anterior vertebral body corpectomy and reconstruction. If the pathology is primarily posterior, then laminectomy and posterolateral instrumentation may be preferred. In some patients, simultaneous anterior and posterior correction of instability and fracture is necessary and is now possible with a single-stage Stanford University Medical Center (SUMC) technique with similar results to the traditional 2-stage approach.
  
  
  METHODS
  Thirty patients who underwent 31 single-stage thoracic vertebrectomies with circumferential reconstructions for thoracic spine fractures between 2004 and 2006 at SUMC were retrospectively reviewed. All surgeries were performed prone; operative technical details are reported. The preoperative and postoperative thoracic kyphotic angles were measured by Cobb angle evaluation using lateral chest plain films and magnetic resonance imaging. Other outcome measures evaluated included operative time, blood loss, neurologic and functional outcomes, postoperative pain, and treatment complications.
  
  
  RESULTS
  The mean follow-up was 17.21 months (range: 9 to 30 mo) and preoperative kyphosis was 20.4 degrees (range: 6.0 to 57.9 degrees). The average postoperative kyphosis was 8.3 degrees (range: 1.8 to 2.67 degrees) and correction of kyphosis was 16.2 degrees (range: 6 to 30 degrees). The median estimated blood loss was 1411.67 mL (range: 300 to 4000 mL) and mean operating time was 4.8 hours (range: 2.8 to 8.6 h). Complications included 2 hardware failures requiring revision, 2 infections, and 1 dural laceration. Pain, Frankel Grade, and functional status were improved in all, except 1 preoperatively bedridden patient.
  
  
  CONCLUSIONS
  Thoracic kyphotic correction is possible through a prone single-stage simultaneous anterior vertebrectomy and posterior reconstruction. Sufficient anterior and posterior correction of instability and fracture using the SUMC technique is possible with similar results to the traditional 2-stage approach.
authors.affiliation: Department of Neurosurgery, Stanford University Medical Center, CA 94305-5327, USA.
authors.forename: Chanjong
authors.initials: C
authors.lastname: Yoo
authors.forename: Stephen I
authors.initials: SI
authors.lastname: Ryu
authors.forename: Jon
authors.initials: J
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D017586:Diskectomy / Q000379:methods; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D016268:Internal Fixators; D007738:Kyphosis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D011183:Postoperative Complications / Q000453:epidemiology / Q000473:pathology / Q000503:physiopathology; D011871:Radiology; D019651:Plastic Surgery Procedures / Q000295:instrumentation / Q000379:methods*; D012189:Retrospective Studies; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D054854:Vertebroplasty / Q000295:instrumentation / Q000379:methods*; D055815:Young Adult