title: [Early clinical outcome of cervical artificial disc replacement].
abstract: OBJECTIVE
  To summarize the experience of cervical artificial disc replacement.
  
  
  METHODS
  The clinical data of 29 cases undergoing standard Bryan artificial disc replacement, 15 males, aged 47 (32 approximately 60), and 14 females, aged 49 (40 approximately 65), 16 with cervical spondylotic myelopathy and 13 with cervical disc herniation, were analyzed. Twenty patients underwent replacement of one disc and 4 patients underwent replacement of 2 discs. A follow-up of 3.7 months was conducted.
  
  
  RESULTS
  No complication was seen intra-operatively and post-operatively. All patients felt improvement of preoperative symptoms immediately postoperatively and returned to work 2 approximately 4 weeks after the operation. The JOA scoring was improved by 56%. The average motion range of the operative intervertebral space was 12.2 degrees before operation and was 10.9 degrees after the operation in vertical direction. The average motion range of the operative intervertebral space in vertical direction was 12.2 degrees before operation and was 10.9 degrees after the operation. The average motion range of the adjacent intervertebral space in vertical direction was 10.9 degrees before operation and was 9.4 degrees after the operation. The satisfaction rate of the patients was 94%.
  
  
  CONCLUSIONS
  The short-term effect of standard Bryan artificial disc replacement is satisfactory.
authors.affiliation: Department of Spine Surgery, Beijing Jishuitan Hospital, Fourth Clinical Medical College of Peking University, Beijing 100035, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Tian
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Qin
authors.initials: Q
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Hu
authors.forename: Zhi-Yu
authors.initials: ZY
authors.lastname: Li
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yuan
authors.forename: Yu-Zhen
authors.initials: YZ
authors.lastname: Sun
mesh_terms: D000328:Adult; D000368:Aged; D019643:Arthroplasty, Replacement; D002574:Cervical Vertebrae / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007403:Intervertebral Disc / Q000601:surgery*; D007405:Intervertebral Disc Displacement / Q000601:surgery; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D013128:Spinal Osteophytosis / Q000601:surgery*