Moment-rotation relationships of the ligamentous occipito-atlanto-axial complex
The relationships between applied pure moments at the occiput (C0) and the resulting rotations at the atlanto-occipital (C0–C1) and atlanto-axial (C1–C2) joints are quantified. In axial twist, with a moment of 0.3 Nm, a mean rotation of about 2.5° and 23.3° was observed at C0–C1 and C1–C2 units resp...
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| Veröffentlicht in: | Journal of biomechanics 1988, Vol.21 (8), p.673,677-675,680 |
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| container_end_page | 675,680 |
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| container_issue | 8 |
| container_start_page | 673,677 |
| container_title | Journal of biomechanics |
| container_volume | 21 |
| creator | Goel, V.K. Clark, C.R. Gallaes, K. Liu, Y.King |
| description | The relationships between applied pure moments at the occiput (C0) and the resulting rotations at the atlanto-occipital (C0–C1) and atlanto-axial (C1–C2) joints are quantified. In axial twist, with a moment of 0.3 Nm, a mean rotation of about 2.5° and 23.3° was observed at C0–C1 and C1–C2 units respectively. Both the atlas and axis contributed to produce lateral bending motion. The ratio between extension and flexion rotations at C0–C1 was 2.5 : 1. Lateral bending and axial rotations were strongly coupled to each other. The occipito-atlanto-axial complex exhibited a large ‘neutral zone’ compared to lower cervical spine segments. The likely clinical significance of these findings are discussed. |
| doi_str_mv | 10.1016/0021-9290(88)90204-7 |
| format | Article |
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In axial twist, with a moment of 0.3 Nm, a mean rotation of about 2.5° and 23.3° was observed at C0–C1 and C1–C2 units respectively. Both the atlas and axis contributed to produce lateral bending motion. The ratio between extension and flexion rotations at C0–C1 was 2.5 : 1. Lateral bending and axial rotations were strongly coupled to each other. The occipito-atlanto-axial complex exhibited a large ‘neutral zone’ compared to lower cervical spine segments. The likely clinical significance of these findings are discussed.</description><identifier>ISSN: 0021-9290</identifier><identifier>EISSN: 1873-2380</identifier><identifier>DOI: 10.1016/0021-9290(88)90204-7</identifier><identifier>PMID: 3170621</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Aged ; Aged, 80 and over ; Aging - physiology ; Atlanto-Axial Joint - physiology ; Atlanto-Occipital Joint - physiology ; Biological and medical sciences ; Biomechanics. 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In axial twist, with a moment of 0.3 Nm, a mean rotation of about 2.5° and 23.3° was observed at C0–C1 and C1–C2 units respectively. Both the atlas and axis contributed to produce lateral bending motion. The ratio between extension and flexion rotations at C0–C1 was 2.5 : 1. Lateral bending and axial rotations were strongly coupled to each other. The occipito-atlanto-axial complex exhibited a large ‘neutral zone’ compared to lower cervical spine segments. The likely clinical significance of these findings are discussed.</description><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Aging - physiology</subject><subject>Atlanto-Axial Joint - physiology</subject><subject>Atlanto-Occipital Joint - physiology</subject><subject>Biological and medical sciences</subject><subject>Biomechanics. Biorheology</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>In Vitro Techniques</subject><subject>Ligaments, Articular - physiology</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Movement</subject><subject>Rotation</subject><subject>Tissues, organs and organisms biophysics</subject><issn>0021-9290</issn><issn>1873-2380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1r3DAQhkVoSDcf_6AFH0pIDm4l2ZbkS6GEfMGWvTRnMZZHjYptuZK2JP8-cnbZY08jNM8M7zyEfGL0K6NMfKOUs7LlLb1S6rqlnNalPCIrpmRV8krRD2R1QD6S0xj_UEplLdsTclIxSQVnK7L56UecUhl8guT8VAQc3h_x2c2x8LZIz1gM7jcsmN_mL2Pc7JIvIQ0wLfXFwVAYP84DvpyTYwtDxIt9PSNPd7e_bh7K9eb-8ebHujR1w1Np297WnLcWLFQUrADagWk4531V1Z3oGt5VFgSzFqWU-Y4G29aA4bxTitnqjFzu9s7B_91iTHp00eCQI2FOqaWqBWuEyGC9A03wMQa0eg5uhPCqGdWLR71I0oskrZR-96hlHvu837_tRuwPQ3txuf9l34doYLABJuPiAZO8ZqJpMvZ9h2F28c9h0NE4nAz2LqBJuvfu_zneAMGgj-w</recordid><startdate>1988</startdate><enddate>1988</enddate><creator>Goel, V.K.</creator><creator>Clark, C.R.</creator><creator>Gallaes, K.</creator><creator>Liu, Y.King</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><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>7X8</scope></search><sort><creationdate>1988</creationdate><title>Moment-rotation relationships of the ligamentous occipito-atlanto-axial complex</title><author>Goel, V.K. ; Clark, C.R. ; Gallaes, K. ; Liu, Y.King</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c452t-f9df4229fafa30af6a0bac5222d334b6b52b3fa61ffe7770025e99cac22b881f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1988</creationdate><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Aging - physiology</topic><topic>Atlanto-Axial Joint - physiology</topic><topic>Atlanto-Occipital Joint - physiology</topic><topic>Biological and medical sciences</topic><topic>Biomechanics. Biorheology</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>In Vitro Techniques</topic><topic>Ligaments, Articular - physiology</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Movement</topic><topic>Rotation</topic><topic>Tissues, organs and organisms biophysics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Goel, V.K.</creatorcontrib><creatorcontrib>Clark, C.R.</creatorcontrib><creatorcontrib>Gallaes, K.</creatorcontrib><creatorcontrib>Liu, Y.King</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of biomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Goel, V.K.</au><au>Clark, C.R.</au><au>Gallaes, K.</au><au>Liu, Y.King</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Moment-rotation relationships of the ligamentous occipito-atlanto-axial complex</atitle><jtitle>Journal of biomechanics</jtitle><addtitle>J Biomech</addtitle><date>1988</date><risdate>1988</risdate><volume>21</volume><issue>8</issue><spage>673,677</spage><epage>675,680</epage><pages>673,677-675,680</pages><issn>0021-9290</issn><eissn>1873-2380</eissn><abstract>The relationships between applied pure moments at the occiput (C0) and the resulting rotations at the atlanto-occipital (C0–C1) and atlanto-axial (C1–C2) joints are quantified. In axial twist, with a moment of 0.3 Nm, a mean rotation of about 2.5° and 23.3° was observed at C0–C1 and C1–C2 units respectively. Both the atlas and axis contributed to produce lateral bending motion. The ratio between extension and flexion rotations at C0–C1 was 2.5 : 1. Lateral bending and axial rotations were strongly coupled to each other. The occipito-atlanto-axial complex exhibited a large ‘neutral zone’ compared to lower cervical spine segments. The likely clinical significance of these findings are discussed.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>3170621</pmid><doi>10.1016/0021-9290(88)90204-7</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of biomechanics, 1988, Vol.21 (8), p.673,677-675,680 |
| issn | 0021-9290 1873-2380 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Aged Aged, 80 and over Aging - physiology Atlanto-Axial Joint - physiology Atlanto-Occipital Joint - physiology Biological and medical sciences Biomechanics. Biorheology Female Fundamental and applied biological sciences. Psychology Humans In Vitro Techniques Ligaments, Articular - physiology Male Middle Aged Movement Rotation Tissues, organs and organisms biophysics |
| title | Moment-rotation relationships of the ligamentous occipito-atlanto-axial complex |
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