title: [Research progress of vacuum phenomenon in spine].
abstract: OBJECTIVE
  To review the research progress of the vacuum phenomenon in spine.
  
  
  METHODS
  The recent articles about the vacuum phenomenon in spine were reviewed; the features of imaging and the clinical correlation were summarized.
  
  
  RESULTS
  The vacuum phenomenon has been described in every segment of the spine. This phenomenon occurs mostly to the disc space and represents a transparent area on radiograph.
  
  
  CONCLUSIONS
  The causes of the vacuum phenomenon include degeneration of the anatomic structures of spine, trauma, and other pathologic changes. The vacuum phenomenon has important diagnostic and clinical significances.
authors.affiliation: Department of Orthopedic Surgery, the First Affiliated Hospital of Soochow University, Suzhou Jiangsu, 215006, P.R. China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Liang
authors.initials: L
authors.lastname: Chen
authors.forename: Yong
authors.initials: Y
authors.lastname: Gu
authors.forename: Huilin
authors.initials: H
authors.lastname: Yang
authors.forename: Tiansi
authors.initials: T
authors.lastname: Tang
mesh_terms: D006801:Humans; D013122:Spinal Diseases / Q000473:pathology*; D013131:Spine / Q000473:pathology*; D014618:Vacuum