Measurement of blood flow to the vertebral bone and disc. 1993

S P Hughes, and A L Wallace, and I D McCarthy, and R H Fleming, and B C Wyatt
Department of Orthopaedic Surgery, University of Edinburgh, Scottland, UK.

Measurements of blood flow were made in the endplate and disc of the vertebrae in adult sheep. In anaesthetised animals, radioactively labelled microspheres were injected into the left ventricle and blood withdrawn from the brachial artery. The lumbar spine was then removed and sectioned to measure microsphere deposition. Blood flow in the bony endplate was found to be 4.22 +/- 0.59 ml/min 100 g, and flow of 0.57 +/- 0.29 ml/min 100 g was also measured in regions of the disc adjoining the endplate. No significant flow was recorded in the central region of the disc. This work has clinical significance in relation to spinal infections and also to the pathogenesis of degenerative disc disease.

UI MeSH Term Description Entries
D007403 Intervertebral Disc Any of the 23 plates of fibrocartilage found between the bodies of adjacent VERTEBRAE. Disk, Intervertebral,Intervertebral Disk,Disc, Intervertebral,Discs, Intervertebral,Disks, Intervertebral,Intervertebral Discs,Intervertebral Disks
D008159 Lumbar Vertebrae VERTEBRAE in the region of the lower BACK below the THORACIC VERTEBRAE and above the SACRAL VERTEBRAE. Vertebrae, Lumbar
D008863 Microspheres Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers. Latex Beads,Latex Particles,Latex Spheres,Microbeads,Bead, Latex,Beads, Latex,Latex Bead,Latex Particle,Latex Sphere,Microbead,Microsphere,Particle, Latex,Particles, Latex,Sphere, Latex,Spheres, Latex
D012039 Regional Blood Flow The flow of BLOOD through or around an organ or region of the body. Blood Flow, Regional,Blood Flows, Regional,Flow, Regional Blood,Flows, Regional Blood,Regional Blood Flows
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012756 Sheep Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS. Ovis,Sheep, Dall,Dall Sheep,Ovis dalli
D023421 Models, Animal Non-human animals, selected because of specific characteristics, for use in experimental research, teaching, or testing. Experimental Animal Models,Laboratory Animal Models,Animal Model,Animal Model, Experimental,Animal Model, Laboratory,Animal Models,Animal Models, Experimental,Animal Models, Laboratory,Experimental Animal Model,Laboratory Animal Model,Model, Animal,Model, Experimental Animal,Model, Laboratory Animal,Models, Experimental Animal,Models, Laboratory Animal

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