title: Intraosseous vertebral body pressures.
abstract: In an effort to determine the relationship between low-back pain and intraosseous hypertension, in vivo vertebral pressure measurements were performed on 19 patients. A cannulated screw was placed percutaneously into the middle of the vertebral body by a transpedicular route. Pressure measurements were recorded with the patient in various positions. Pressures were greatest in the sitting position, lowest in the prone position, and intermediate in the standing position. A correlation was found between intravertebral body pressure and patient position. Pressures were highest in the positions most commonly associated with low-back pain.
authors.affiliation: University of Toronto, Ontario, Canada.
authors.forename: S I
authors.initials: SI
authors.lastname: Esses
authors.forename: J K
authors.initials: JK
authors.lastname: Moro
mesh_terms: D001416:Back Pain / Q000209:etiology; D001863:Bone Screws; D006801:Humans; D008159:Lumbar Vertebrae / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011312:Pressure; D014160:Transducers, Pressure