title: Adult Scoliosis Deformity Surgery: Comparison of Outcomes Between One Versus Two Attending Surgeons.
abstract: Retrospective review of prospectively collected data.
  
  
  
  Assess outcomes of adult spinal deformity (ASD) surgery performed by one versus two attending surgeons.
  
  
  
  ASD centers have developed two attending teams to improve efficiency; their effects on complications and outcomes have not been reported.
  
  
  
  Patients with ASD with five or more levels fused and more than 2-year follow-up were included. Estimated blood loss (EBL), length of stay (LOS), operating room (OR) time, complications, quality of life (Health Related Quality of Life), and x-rays were analyzed. Outcomes were compared between one-surgeon (1S) and two-surgeon (2S) centers. A deformity-matched cohort was analyzed.
  
  
  
  A total of 188 patients in 1S and 77 in 2S group were included. 2S group patients were older and had worse deformity based on the Scoliosis Research Society-Schwab classification (P < 0.05). There were no significant differences in levels fused (P = 0.57), LOS (8.7 vs 8.9 days), OR time (445.9 vs 453.2 min), or EBL (2008 vs 1898 cm; P > 0.05). 2S patients had more three-column osteotomies (3CO; P < 0.001) and used less bone morphogenetic protein 2 (BMP-2; 79.9% vs 15.6%; P < 0.001). The 2S group had fewer intraoperative complications (1.3% vs 11.1%; P = 0.006). Postoperative (6 wk to 2 yr) complications were more frequent in the 2S group (4.8% vs 15.6%; P < 0.002). After matching for deformity, there were no differences in (9.1 vs 10.1 days), OR time (467.8 vs 508.4 min), or EBL (3045 vs 2247 cm; P = 0.217). 2S group used less BMP-2 (20.6% vs 84.8%; P < 0.001), had fewer intraoperative complications (P = 0.015) but postoperative complications due to instrumentation failure/pseudarthrosis were more frequent (P < 0.01).
  
  
  
  No significant differences were found in LOS, OR time, or EBL between the 1S and 2S groups, even when matching for severity of deformity. 2S group had less BMP-2 use, fewer intraoperative complications but more postoperative complications.
  
  
  
  2.
authors.affiliation: Department of Orthopedic Surgery, Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, NY.
authors.forename: Jaime A
authors.initials: JA
authors.lastname: Gomez
authors.affiliation: Hospital for Joint Diseases, New York University, New York, NY.
authors.forename: Virginie
authors.initials: V
authors.lastname: Lafage
authors.affiliation: Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD.
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Sciubba
authors.affiliation: Department of Orthopedic Surgery, Rocky Mountain Hospital for Children, Denver, CO.|San Diego Center for Spinal Disorders, La Jolla, CA.
authors.forename: Shay
authors.initials: S
authors.lastname: Bess
authors.affiliation: Hospital for Joint Diseases, New York University, New York, NY.
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Mundis
authors.affiliation: Hospital for Joint Diseases, New York University, New York, NY.
authors.forename: Barthelemy
authors.initials: B
authors.lastname: Liabaud
authors.affiliation: Department of Orthopedic Surgery, Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, NY.
authors.forename: Regina
authors.initials: R
authors.lastname: Hanstein
authors.affiliation: Department of Neurosurgery, University of Virginia Medical Center, Charlottesville, VA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Shaffrey
authors.affiliation: Department of Orthopedic Surgery, Washington University, St Louis, MI.
authors.forename: Michael
authors.initials: M
authors.lastname: Kelly
authors.affiliation: Department of Neurosurgery, University of California San Francisco, San Francisco, CA.
authors.forename: Christopher
authors.initials: C
authors.lastname: Ames
authors.affiliation: Department of Neurosurgery, University of Virginia Medical Center, Charlottesville, VA.
authors.forename: Justin S
authors.initials: JS
authors.lastname: Smith
authors.affiliation: Hospital for Joint Diseases, New York University, New York, NY.
authors.forename: Peter G
authors.initials: PG
authors.lastname: Passias
authors.affiliation: Department of Neurosurgery, University of California San Francisco, San Francisco, CA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Errico
authors.affiliation: Department of Orthopedic Surgery, New York University Langone Medical Center, New York, NY.
authors.forename: Frank
authors.initials: F
authors.lastname: Schwab
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007902:Length of Stay / Q000639:trends; D008297:Male; D008505:Medical Staff, Hospital / Q000592:standards*; D008875:Middle Aged; D061646:Operative Time; D010348:Patient Care Team / Q000592:standards* / Q000639:trends; D011446:Prospective Studies; D012189:Retrospective Studies; D012600:Scoliosis / Q000175:diagnosis / Q000601:surgery*; D066231:Surgeons / Q000592:standards*; D016896:Treatment Outcome