title: Operative strategy and clinical outcomes of ROI-C(TM) fusion device in the treatment of Hangman's fracture.
abstract: OBJECTIVE
  to compare the clinical outcomes of anterior fusion with ROI-C(TM) and titanium plate in the treatment of Hangman's fractures.
  
  
  METHODS
  From Dec 2005 to Jan 2015, a total of 21 patients with Hangman's fracture, who underwent anterior internal fixation with titanium plate or ROI-C(TM), were retrospectively reviewed. All patients underwent anteroposterior, lateral, and flexion-extension radiography and computed tomography of cervical spine preoperatively and postoperatively at 3 days and 3 months. Cervical visual analog scale (VAS) score, Bazaz dysphagia score, angular displacement (AD), horizontal displacement (HD), fusion rate, and blood loss were measured.
  
  
  RESULTS
  The VAS and Bazaz dysphagia score at postoperative 3 days were significantly lower in ROI-C(TM) group, as compared to titanium plate group (P<0.05). AD and HD were significantly decreased in both groups after operation (P<0.05). The postoperative rate of complete reduction of spondylolisthesis was significantly higher in ROI-C(TM) group than that in titanium plate group (P<0.05). The operative time and blood loss was significantly decreased in ROI-C(TM) group, as compared to titanium plate group (P<0.05).
  
  
  CONCLUSIONS
  ROI-C(TM) device showed superiority to titanium plate in the treatment of Hangman's fractures, suggesting that anterior operation with ROI-C(TM) device may be a better choice for treating Hangman's fractures.
authors.affiliation: Qingdao UniversityQingdao 266000, China; Department of Spine Surgery, The Affiliated Hospital of Jining Medical UniversityJining 272000, China.
authors.forename: Guijun
authors.initials: G
authors.lastname: Cao
authors.affiliation: Department of Spine Surgery, The Affiliated Hospital of Jining Medical University Jining 272000, China.
authors.forename: Chunyang
authors.initials: C
authors.lastname: Meng
authors.affiliation: Department of Spine Surgery, The Affiliated Hospital of Jining Medical University Jining 272000, China.
authors.forename: Weihong
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Department of Spine Surgery, The Affiliated Hospital of Jining Medical University Jining 272000, China.
authors.forename: Xiangqing
authors.initials: X
authors.lastname: Kong
keywords: Hangman’s fracture; cervical fusion cage; fusion rate; internal fixation