title: [The application of cervical arthroplasty with Mobi-C for treatment of cervical spondylotic radiculopathy].
abstract: OBJECTIVE
  To investigate the clinical effectiveness of cervical arthroplasty with Mobi-C prosthesis for treatment of cervical spondylotic radiculopathy.
  
  
  METHODS
  From March 2008 to November 2009, a group of 67 patients with cervical spondylotic radiculopathy were analyzed retrospectively. The short form-36 physical component summary (SF-36) and visual analogue scale (VAS) score were used to compare clinical outcome pre- and postoperatively. The follow-up was performed at 3 d, 3 months, 6 months and 1 year postoperatively. Static and dynamic radiography were taken to evaluate height of disc space, range of motion (ROM) and heterotopic ossification (HO) of index levels.
  
  
  RESULTS
  Fifty-one cases were followed up, 16 cases were lost. Average follow-up was for 19.7 months (13 - 31 months). All of patients had improvement for clinical symptoms. There was a significant difference on SF-36 between pre- and postoperatively. The significant difference was found in VAS score in which neck pain was decreased from preoperative 4.6 ± 0.4 to postoperative 2.0 ± 0.5 (P < 0.05), arm pain was decreased from preoperative 6.5 ± 0.4 to postoperative 1.3 ± 0.4 (P < 0.05). There was a significant difference in height of disc space which was increased from preoperative (6.5 ± 1.1) mm to (7.7 ± 0.9) mm (P < 0.05). ROM was increased from preoperative 7.2° ± 3.1° to latest follow-up 8.1° ± 3.2°, however, no significant difference was found concerning ROM pre- and postoperatively (P > 0.05). No other complications were met during follow-up period other than the 17 cases of heterotopic ossification in ClassI, the 7 cases in Class II in 1 year postoperatively, but no any correlation were found between the radiographic finding in HO and clinical symptoms.
  
  
  CONCLUSIONS
  Cervical arthroplasty with Mobi-C could improve neurofunctional symptoms, maintain ROM of index level and height of disc space. For accurate patient selection, long term follow-up is still needed in prospective randomized study.
authors: Department of Orthopaedics, the Third Affiliated Hospital of Southern Medical University, Orthopaedics Research Institute of Southern Medical University, Guangzhou, China. dadijin@yahoo.com
authors: Da-di
authors: DD
authors: Jin
authors: Hui-Bo
authors: HB
authors: Yan
authors: Zhong-Min
authors: ZM
authors: Zhang
authors: Qing-Chu
authors: QC
authors: Li
authors: Bao-Ge
authors: BG
authors: Liu
mesh_terms: D000328:Adult; D019643:Arthroplasty, Replacement / Q000379:methods*; D002574:Cervical Vertebrae; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D011843:Radiculopathy / Q000150:complications / Q000601:surgery; D012189:Retrospective Studies; D055009:Spondylosis / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome