title: Application of a crescent-shaped PMMA strut in anterior spinal reconstruction of thoracolumbar and lumbar burst fractures: a new technique.
abstract: OBJECTIVE
  Our aim was to evaluate the safety and efficacy of the novel crescent-shaped PMMA strut for anterior spinal reconstruction and fusion in patients with thoracolumbar bust fractures. The surgical results using this technique are reviewed.
  
  
  METHODS
  Six patients suffering thoracolumbar and lumbar fracture using a crescent-shaped PMMA strut combined with fixation for reconstruction of the anterior spinal column. Postoperative radiographic, included plain x-ray and 3-D computed tomography (CT) imaging, evaluated fusion status postoperatively. Pain relief and neurological status was assessed by comparing Frankel Score and Vision Analogue Score (VAS) pre- and postoperatively.
  
  
  RESULTS
  All six patients achieved immediate stabilization. No patient needs additional posterior instrumentation stabilization due to loss of sagittal alignment and kyphosis deformity. All patients achieved significant relief of back pain, improvement of neurological function, correction of preoperative deformity and excellent bone fusion results documented on plain x-rays and 3-D CT reconstruction imaging. There were no complications of neurological worsening, wound infection, subsidence and dislodgement of PMMA strut, or anterior instrumentation failure during the follow-up.
  
  
  CONCLUSIONS
  The crescent-shaped PMMA strut is an alternative for anterior spinal reconstruction and fusion in patients with thoracolumbar burst fracture. However, the long-term clinical effects and possible complications need further evaluation.
authors.affiliation: Xiangya Hospital, Central South University, Department of Orthopedics, Changsha, China.
authors.forename: Wan
authors.initials: W
authors.lastname: Jun
authors.forename: Kang
authors.initials: K
authors.lastname: Yi-Jun
authors.forename: Chen
authors.initials: C
authors.lastname: Fei
mesh_terms: D000328:Adult; D001843:Bone Cements / Q000627:therapeutic use; D005260:Female; D005500:Follow-Up Studies; D050815:Fractures, Compression / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019904:Polymethyl Methacrylate / Q000627:therapeutic use*; D011859:Radiography; D019651:Plastic Surgery Procedures / Q000295:instrumentation* / Q000379:methods; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation* / Q000379:methods; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements; D019904:Polymethyl Methacrylate