title: National and regional rates and variation of cervical discectomy with and without anterior fusion, 1990-1999.
abstract: METHODS
  A national hospitalization database was used to determine rates and trends in the treatment of cervical disc disease.
  
  
  OBJECTIVE
  To examine the temporal and geographic variations in hospitalizations and surgical procedures for cervical disc disease.
  
  
  BACKGROUND
  Studies of spinal surgery during the 1980s showed significant increases in the rates for all procedures, particularly those involving fusion. The management of cervical disc disease continues to be controversial.
  
  
  METHODS
  Data from the National Hospital Discharge Survey from 1990 through 1999 were analyzed. Records were selected and categorized according to an algorithm of International Classification of Diseases (ICD-9) procedure and diagnosis codes.
  
  
  RESULTS
  During the study period, the rate of hospitalization for surgical and nonsurgical treatment of cervical disc disease did not increase significantly. There was, however, a statistically significant increase in the proportion of hospitalizations for the surgical treatment of cervical disc disease that included a fusion procedure. There also was significant geographic variation in the rate of fusion procedures, with the South having the highest rate.
  
  
  CONCLUSIONS
  Although the rate of surgery for cervical disc disease did not increase significantly during the 1990s, the rate of fusion procedures did rise significantly.
authors.affiliation: Department of Neurological Surgery, Columbia University, New York, New York, USA.
authors.forename: Peter D
authors.initials: PD
authors.lastname: Angevine
authors.forename: Ray R
authors.initials: RR
authors.lastname: Arons
authors.forename: Paul C
authors.initials: PC
authors.lastname: McCormick
mesh_terms: D017677:Age Distribution; D000465:Algorithms; D016025:Bone Transplantation / Q000706:statistics & numerical data; D002574:Cervical Vertebrae / Q000601:surgery*; D016208:Databases, Factual / Q000706:statistics & numerical data; D017586:Diskectomy / Q000706:statistics & numerical data*; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D038801:International Classification of Diseases; D007403:Intervertebral Disc / Q000601:surgery; D016015:Logistic Models; D008297:Male; D009333:Neck; D016017:Odds Ratio; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data / Q000639:trends*; D017678:Sex Distribution; D013122:Spinal Diseases / Q000601:surgery; D013123:Spinal Fusion / Q000706:statistics & numerical data*; D014182:Transplantation, Autologous / Q000706:statistics & numerical data; D014481:United States