Measurement of a spinal motion segment stiffness matrix
The six-degrees-of-freedom elastic behavior of spinal motion segments can be approximated by a stiffness matrix. A method is described to measure this stiffness matrix directly with the motion segment held under physiological conditions of axial preload and in an isotonic fluid bath by measuring the...
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| Veröffentlicht in: | Journal of biomechanics 2002-04, Vol.35 (4), p.517-521 |
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| container_end_page | 521 |
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| container_issue | 4 |
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| container_title | Journal of biomechanics |
| container_volume | 35 |
| creator | Stokes, Ian A. Gardner-Morse, Mack Churchill, David Laible, Jeffrey P. |
| description | The six-degrees-of-freedom elastic behavior of spinal motion segments can be approximated by a stiffness matrix. A method is described to measure this stiffness matrix directly with the motion segment held under physiological conditions of axial preload and in an isotonic fluid bath by measuring the forces and moments associated with each of the six orthogonal translations and rotations. The stiffness matrix was obtained from the load–displacement measurements by linear least squares assuming a symmetric matrix. Results from a pig lumbar spinal motion segment in an isotonic bath, with and without a 500
N axial preload, showed a large stiffening effect with axial preload. |
| doi_str_mv | 10.1016/S0021-9290(01)00221-4 |
| format | Article |
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N axial preload, showed a large stiffening effect with axial preload.</description><subject>Animals</subject><subject>Elasticity</subject><subject>Equipment Design</subject><subject>Flexibility</subject><subject>Isotonic Solutions</subject><subject>Joint mechanics</subject><subject>Models, Biological</subject><subject>Motion segment</subject><subject>Movement</subject><subject>Rotation</subject><subject>Spine</subject><subject>Spine - physiology</subject><subject>Stiffness</subject><subject>Swine</subject><subject>Weight-Bearing</subject><issn>0021-9290</issn><issn>1873-2380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtKxDAUhoMozjj6CEpXoovqSZM07Upk8AYjLtR1SNITifQyJq3o29u5oEtXh5_znQsfIccULijQ_PIZIKNpmZVwBvR8DGPiO2RKC8nSjBWwS6a_yIQcxPgOAJLLcp9MKC0Z5xmdEvmIOg4BG2z7pHOJTuLSt7pOmq73XZtEfFu3Yu-dazHGpNF98F-HZM_pOuLRts7I6-3Ny_w-XTzdPcyvF6llZdanvDJSSi2c0JKjNqLKqAbQGk1hcu5M5pgUgoucGou5ldRwI4tKmtw5BozNyOlm7zJ0HwPGXjU-Wqxr3WI3RCWpKIAB_AvSQoyfZGIExQa0oYsxoFPL4BsdvhUFtVKr1mrVypsCqtZqFR_nTrYHBtNg9Te1dTkCVxsARx-fHoOK1mNrsfIBba-qzv9z4gcDp4gM</recordid><startdate>20020401</startdate><enddate>20020401</enddate><creator>Stokes, Ian A.</creator><creator>Gardner-Morse, Mack</creator><creator>Churchill, David</creator><creator>Laible, Jeffrey P.</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QP</scope><scope>7X8</scope></search><sort><creationdate>20020401</creationdate><title>Measurement of a spinal motion segment stiffness matrix</title><author>Stokes, Ian A. ; Gardner-Morse, Mack ; Churchill, David ; Laible, Jeffrey P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-4db777a5f5a74eab5d21a00aaeb8b64fb2f37554561bce6c71b4b78d7b6ff3033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animals</topic><topic>Elasticity</topic><topic>Equipment Design</topic><topic>Flexibility</topic><topic>Isotonic Solutions</topic><topic>Joint mechanics</topic><topic>Models, Biological</topic><topic>Motion segment</topic><topic>Movement</topic><topic>Rotation</topic><topic>Spine</topic><topic>Spine - physiology</topic><topic>Stiffness</topic><topic>Swine</topic><topic>Weight-Bearing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stokes, Ian A.</creatorcontrib><creatorcontrib>Gardner-Morse, Mack</creatorcontrib><creatorcontrib>Churchill, David</creatorcontrib><creatorcontrib>Laible, Jeffrey P.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stokes, Ian A.</au><au>Gardner-Morse, Mack</au><au>Churchill, David</au><au>Laible, Jeffrey P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of a spinal motion segment stiffness matrix</atitle><jtitle>Journal of biomechanics</jtitle><addtitle>J Biomech</addtitle><date>2002-04-01</date><risdate>2002</risdate><volume>35</volume><issue>4</issue><spage>517</spage><epage>521</epage><pages>517-521</pages><issn>0021-9290</issn><eissn>1873-2380</eissn><abstract>The six-degrees-of-freedom elastic behavior of spinal motion segments can be approximated by a stiffness matrix. A method is described to measure this stiffness matrix directly with the motion segment held under physiological conditions of axial preload and in an isotonic fluid bath by measuring the forces and moments associated with each of the six orthogonal translations and rotations. The stiffness matrix was obtained from the load–displacement measurements by linear least squares assuming a symmetric matrix. Results from a pig lumbar spinal motion segment in an isotonic bath, with and without a 500
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| identifier | ISSN: 0021-9290 |
| ispartof | Journal of biomechanics, 2002-04, Vol.35 (4), p.517-521 |
| issn | 0021-9290 1873-2380 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_71580300 |
| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Animals Elasticity Equipment Design Flexibility Isotonic Solutions Joint mechanics Models, Biological Motion segment Movement Rotation Spine Spine - physiology Stiffness Swine Weight-Bearing |
| title | Measurement of a spinal motion segment stiffness matrix |
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