Intraosseous vertebral body pressures.
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.
Esses
S I
SI
University of Toronto, Ontario, Canada.
Moro
J K
JK
D001416:Back Pain / Q000209:etiology; D001863:Bone Screws; D006801:Humans; D008159:Lumbar Vertebrae / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011312:Pressure; D014160:Transducers, Pressure