title: Top 50 most-cited articles on craniovertebral junction surgery.
abstract: BACKGROUND
  Craniovertebral junction is a complex anatomical location posing unique challenges to the surgical management of its pathologies. We aimed to identify the fifty most-cited articles that are dedicated to this field.
  
  
  METHODS
  A keyword search using the Thomson Reuters Web of Knowledge was conducted to identify articles relevant to the field of craniovertebral junction surgery. The articles were reviewed based on title, abstract, and methods, if necessary, and then ranked based on the total number of citations to identify the fifty most-cited articles. Characteristics of the articles were determined and analyzed.
  
  
  RESULTS
  The earliest top-cited article was published in 1948. When stratified by decade, 1990s was the most productive with 16 articles. The most-cited article was by Anderson and Dalonzo on a classification of odontoid fractures. By citation rate, the most-cited article was by Herms and Melcher who described Goel's technique of atlantoaxial fixation using C1 lateral mass screws and C2 pedicle screws with rod fixation. Atlantoaxial fixation was the most common topic. The United States, Barrow Neurological Institute, and VH Sonntag were the most represented country, institute, and author, respectively. The significant majority of articles were designed as case series providing level IV evidence.
  
  
  CONCLUSIONS
  Using citation analysis, we have provided a list of the most-cited articles representing important contributions of various authors from many institutions across the world to the field of craniovertebral junction surgery.
authors.affiliation: Department of Neursurgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States of America.
authors.forename: Nima
authors.initials: N
authors.lastname: Alan
authors.affiliation: Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
authors.forename: Jonathan Andrew
authors.initials: JA
authors.lastname: Cohen
authors.affiliation: Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
authors.forename: James
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Department of Neursurgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States of America.
authors.forename: Matthew
authors.initials: M
authors.lastname: Pease
authors.affiliation: Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
authors.forename: Adam S
authors.initials: AS
authors.lastname: Kanter
authors.affiliation: Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
authors.forename: David O
authors.initials: DO
authors.lastname: Okonkwo
authors.affiliation: Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America.
authors.forename: David Kojo
authors.initials: DK
authors.lastname: Hamilton
keywords: Bibliometrics; citation; craniovertebral