title: Incisor Diastasis Associated With Halo Traction in an Osteogenesis Imperfecta Patient: Case Report.
abstract: BACKGROUND
  Scoliosis is a known manifestation of osteogenesis imperfecta (OI), which is characteristically severe in nature and interferes with the general health of these patients. Halo gravity traction (HGT) has been advocated as a preoperative treatment modality to ease the surgical risk while managing these patients with such fragile spines. Application of HGT to this patient population in itself carries a risk.
  
  
  OBJECTIVE
  The authors report an unusual complication of transient incisor diastasis in a patient with OI and scoliosis who was placed in perioperative HGT as a stage of scoliosis management.
  
  
  RESULTS
  The patient had a posterior instrumentation and spinal fusion for the scoliosis and the diastasis resolved after HGT removal.
  
  
  CONCLUSIONS
  Although HGT is a valuable preoperative option in the management of scoliosis in OI patients, it is necessary to assess the patient frequently for both common and rare complications of this procedure.
authors.affiliation: McGill Scoliosis and Spinal Research Group, Department of Surgery, Division of Orthopaedic Surgery, McGill University Health Center, 1529 Cedar Avenue, Montreal, Quebec H3G 1A6, Canada; Department of Orthopaedic Surgery, University of Dammam, Dammam 31451, Saudi Arabia. Electronic address: mohammad.alzahrani2@mail.mcgill.ca.
authors.forename: Mohammad M
authors.initials: MM
authors.lastname: Alzahrani
authors.affiliation: McGill Scoliosis and Spinal Research Group, Department of Surgery, Division of Orthopaedic Surgery, McGill University Health Center, 1529 Cedar Avenue, Montreal, Quebec H3G 1A6, Canada; Department of Orthopaedic Surgery, King Saud University, Riyadh 12372, Saudi Arabia.
authors.forename: Abdulaziz N
authors.initials: AN
authors.lastname: Aljurayyan
authors.affiliation: McGill Scoliosis and Spinal Research Group, Department of Surgery, Division of Orthopaedic Surgery, McGill University Health Center, 1529 Cedar Avenue, Montreal, Quebec H3G 1A6, Canada.
authors.forename: Jean
authors.initials: J
authors.lastname: Ouellet
keywords: Halo gravity traction; Incisor diastasis; Osteogenesis imperfecta; Scoliosis