Spine (Phila Pa 1976). 1991 May;16(5):487-93.

Effects of acute, graded compression on spinal nerve root function and structure. An experimental study of the pig cauda equina.

Rydevik BL, Pedowitz RA, Hargens AR, Swenson MR, Myers RR, Garfin SR.

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Department of Orthopaedics, University of Göteborg, Sweden.

Abstract

A well-controlled experimental model for analysis of compression-induced functional changes of the porcine cauda equina is presented. The model allows for electrophysiologic investigation of a variety of neurophysiologic changes induced by nerve root deformation. At an acute pressure threshold of 50-75 mm Hg, changes in both afferent and efferent conduction are induced. With higher compression pressure, a differential recovery in afferent and efferent conduction is seen.

PMID:: 2052989; [PubMed - indexed for MEDLINE]

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