Linked Life Data

1613631

Source:http://linkedlifedata.com/resource/pubmed/id/1613631

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1992-7-28
pubmed:abstractText
The thoracolumbar junction region is a frequent site of spinal trauma. Accurate knowledge of the normal mechanical behavior of the intervertebral joints in this region is of importance to the clinician in treating the spinal injuries. The present study documented the complete three-dimensional motions of levels T11-T12 and T12-L1 in the thoracolumbar region. Pure moments of flexion/extension, bilateral axial torque, and bilateral lateral bending were applied to 11 three-vertebrae human cadaveric specimens (T11-L1) to a maximum of 7.5 Nm. Intervertebral motions were calculated using stereophotogrammetry and presented in the form of load-displacement curves, each containing three rotations and three translations at one intervertebral level. Average +/- SD flexion, extension, axial rotation, and lateral bending ranges of motion to one side were 2.7 +/- 1.3 degrees, 2.4 +/- 1.3 degrees, 1.8 +/- 0.7 degrees, and 3.5 +/- 1.1 degrees, respectively, at level T11-T12. The same ranges of motion at T12-L1 were 2.9 +/- 1.4 degrees, 3.9 +/- 1.4 degrees, 1.2 +/- 0.7 degrees, and 3.7 +/- 1.1 degrees, respectively. The extension and axial rotation ranges of motion at level T11-T12 were found to be significantly different than the same motions at T12-L1. The different geometry in the facet joints explains these observed differences in the mechanical behavior of T11-T12 and T12-L1.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0736-0266
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
573-80
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Three-dimensional mechanical properties of the thoracolumbar junction.
pubmed:affiliation
Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, CT 06510.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.