title: A comparison of a new zero-profile, stand-alone Fidji cervical cage and anterior cervical plate for single and multilevel ACDF: a minimum 2-year follow-up study.
abstract: To compare perioperative parameters, clinical outcomes, radiographic parameters, and complication rates of the new zero-profile, stand-alone Fidji cervical cage with those of the stand-alone cages with a titanium plate for anterior cervical discectomy and fusion (ACDF) for the surgical treatment of single- and multilevel cervical degenerative disc disease (DDD).
  
  
  
  Between October 2009 and December 2013, 152 consecutive patients [86 males and 52 females; mean age 51.0 years (range 30-69 years)] with cervical DDD, who underwent surgery and were followed for more than 2 years, were enrolled in this study and divided into the cage group and plate group. The study compared perioperative parameters, surgery-related and implant-related complication rates, clinical outcomes, and radiologic parameters.
  
  
  
  The clinical and radiologic results in both groups were satisfactory after a minimum 2-year follow-up. No significant differences between the cage group and plate group in terms of improvement in the 36-Item Short Form Health Survey, visual analogue scale, Neck Disability Index, Japanese Orthopedic Association scores, disc height, mean fusion time, fusion rate, adjacent segment degeneration, and restoration of cervical lordosis, but the cage group was associated with a lower risk of postoperative dysphagia, shorter operation time, less blood loss, less cost of index surgery, and relatively greater simplicity than the plate group.
  
  
  
  The zero-profile, stand-alone Fidji cervical cage for ACDF is an effective, reliable, and safe alternate to the conventional method for the treatment of cervical DDD. However, there is no definitive evidence that Fidji cervical cage has better intermediate-term outcomes than the stand-alone cages with a titanium plate for ACDF.
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China. lizhonghaispine@126.com.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China. lizhonghaispine@126.com.|Department of Orthopaedics, The First Affiliated Hospital of Dalian Medical University, Dalian, The People's Republic of China. lizhonghaispine@126.com.
authors.forename: Zhonghai
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China.
authors.forename: Yantao
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China.
authors.forename: Jiaguang
authors.initials: J
authors.lastname: Tang
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China.
authors.forename: Dongfeng
authors.initials: D
authors.lastname: Ren
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China.
authors.forename: Jidong
authors.initials: J
authors.lastname: Guo
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China.
authors.forename: Huadong
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China. lvshunman@sina.com.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China. lvshunman@sina.com.
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.affiliation: Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, The People's Republic of China. lvshunman@126.com.|Beijing Engineering Research Center of Orthopedic Implants, Beijing, The People's Republic of China. lvshunman@126.com.
authors.forename: Shuxun
authors.initials: S
authors.lastname: Hou
mesh_terms: D000328:Adult; D000368:Aged; D002574:Cervical Vertebrae / Q000601:surgery*; D015331:Cohort Studies; D017586:Diskectomy / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D055959:Intervertebral Disc Degeneration / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D013123:Spinal Fusion / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data
keywords: Adjacent segment degeneration; Anterior cervical discectomy and fusion; Cervical degenerative disc disease; Complications; Follow-up; Outcome; Stand-alone zero-profile interbody fusion system