Quantitative discomanometry and acute disk injuries: An experimental model

Manohar M. Panjabi, Edward Southern, Thomas R. Oxland, Joanne S. Duranceau

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Quantitative discomanometry is a study of intradiscal pressure changes during quantitative injection. The purpose of this study was to determine if correlations exist between discomanometric parameters and disk injuries. Sixteen three-vertebrae porcine spine segments, with two intervening disks, were subjected to standardized high-speed trauma. The injuries were documented by a radiographic injury score (RIS). using pre- and posttrauma lateral radiographs. An anatomic injury score (AIS) also was obtained, based on an anatomic dissection and mid-sagittal plane cuts of the frozen specimen. Before the cutting, each of the disks was subjected to quantitative discomanometry. providing pressure/volume curves. Significant negative correlations were found between the RIS and the maximum pressure sustained (R = -0.60. p < 0.001). and pressure/volume slope (R = -0.60. p < 0.001). Similar relationships were found between the AIS and the maximum pressure (R = -0.71. p < 0.001). and pressure/volume slope (R = -0.63. p < 0.001). This study suggests that quantitative discomanometry can be used to quantify disk injuries. Because the intradiscal pressurization mimics the physiology with weight bearing, its use as a measure of integrity of the end-plate- annulus-end-plate enclosure might be justified.

Original languageEnglish (US)
Pages (from-to)497-506
Number of pages10
JournalJournal of Spinal Disorders
Volume6
Issue number6
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

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Keywords

  • Discography
  • Discomanometry
  • Disk
  • Endplate
  • Injuries

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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