title: Clinical comparison of Zero-profile interbody fusion device and anterior cervical plate interbody fusion in treating cervical spondylosis.
abstract: OBJECTIVE
  the aim of the study was to compare the clinical effect of Zero-profile interbody fusion device (Zero-P) with anterior cervical plate interbody fusion system (PCB) in treating cervical spondylosis.
  
  
  METHODS
  a total of 98 patients with cervical spondylosis (110 segments) in February 2011 to January 2013 were included in our hospital. All participants were randomly divided into observation group and control group with 49 cases in each group. The observation group was treated with Zero-P, while the control group received PCB treatment. Comparison of the two groups in neurological function score (JOA), pain visual analogue scale (VAS), the neck disability index (NDI), quality of life score (SF-36) and cervical curvature (Cobb angle) change were recorded and analyzed before and after treatment.
  
  
  RESULTS
  The observation group was found with 90% excellent and good rate, which was higher than that of the control group (80%). Dysphagia rate in observational group was 16.33% (8/49), which was significantly less than that in control group (46.94%). Operation time and bleeding volume in the observation group was less than those in control group. Postoperative improvements of JOA score, VAS score, and NDI in observational group were also significantly better than that in control group (P<0.05).
  
  
  CONCLUSIONS
  The clinical effect of Zero-P and PCB for the treatment of cervical spondylosis was quite fair, but Zero-P showed a better therapeutic effect with improvement of life quality.
authors.affiliation: Department of Spine Surgery, Shenzhen Second People's Hospital No. 3002, West Sungang Road, Shenzhen, Guangdong, China ; Qilu Hospital of Shandong University No. 107, West Wenhua Road, Jinan, Shandong, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Yan
authors.affiliation: Qilu Hospital of Shandong University No. 107, West Wenhua Road, Jinan, Shandong, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Nie
keywords: Cervical spine; Zero-profile device; anterior; intervertebral fusion; plate