New radiological parameters for the assessment of atlantoaxial instability in children with Down syndrome: the normal values and the risk of spinal cord injury
To determine the normal values and usefulness of the C1/4 space available for spinal cord (SAC) ratio and C1 inclination angle, which are new radiological parameters for assessing atlantoaxial instability in children with Down syndrome. We recruited 272 children with Down syndrome (including 14 who...
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| Veröffentlicht in: | The bone & joint journal 2016-12, Vol.98-B (12), p.1704-1710 |
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| container_title | The bone & joint journal |
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| creator | Nakamura, N Inaba, Y Aota, Y Oba, M Machida, J N Aida Kurosawa, K Saito, T |
| description | To determine the normal values and usefulness of the C1/4 space available for spinal cord (SAC) ratio and C1 inclination angle, which are new radiological parameters for assessing atlantoaxial instability in children with Down syndrome.
We recruited 272 children with Down syndrome (including 14 who underwent surgical treatment), and 141 children in the control group. All were aged between two and 11 years. The C1/4 SAC ratio, C1 inclination angle, atlas-dens interval (ADI), and SAC were measured in those with Down syndrome, and the C1/4 SAC ratio and C1 inclination angle were measured in the control group.
The mean C1/4 SAC ratio in those requiring surgery with Down syndrome, those with Down syndrome not requiring surgery and controls were 0.63 (standard deviation (sd) 0.1), 1.15 (sd 0.13) and 1.29 (sd 0.14), respectively, and the mean C1 inclination angles were -3.1° (sd 10.7°), 15.8° (sd 7.3) and 17.2° (sd 7.3), in these three groups, respectively. The mean ADI and SAC in those with Down syndrome requiring surgery and those with Down syndrome not requiring surgery were 9.8 mm (sd 2.8) and 4.3 mm (sd 1.0), and 11.1 mm (sd 2.6) and 18.5 mm (sd 2.4), respectively.
The normal values of the C1/4 SAC ratio and the C1 inclination angle were found to be about 1.2° and 15º, respectively. Cite this article: Bone Joint J 2016;98-B:1704-10. |
| doi_str_mv | 10.1302/0301-620X.98B12.BJJ-2016-0018.R1 |
| format | Article |
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We recruited 272 children with Down syndrome (including 14 who underwent surgical treatment), and 141 children in the control group. All were aged between two and 11 years. The C1/4 SAC ratio, C1 inclination angle, atlas-dens interval (ADI), and SAC were measured in those with Down syndrome, and the C1/4 SAC ratio and C1 inclination angle were measured in the control group.
The mean C1/4 SAC ratio in those requiring surgery with Down syndrome, those with Down syndrome not requiring surgery and controls were 0.63 (standard deviation (sd) 0.1), 1.15 (sd 0.13) and 1.29 (sd 0.14), respectively, and the mean C1 inclination angles were -3.1° (sd 10.7°), 15.8° (sd 7.3) and 17.2° (sd 7.3), in these three groups, respectively. The mean ADI and SAC in those with Down syndrome requiring surgery and those with Down syndrome not requiring surgery were 9.8 mm (sd 2.8) and 4.3 mm (sd 1.0), and 11.1 mm (sd 2.6) and 18.5 mm (sd 2.4), respectively.
The normal values of the C1/4 SAC ratio and the C1 inclination angle were found to be about 1.2° and 15º, respectively. Cite this article: Bone Joint J 2016;98-B:1704-10.</description><identifier>ISSN: 2049-4394</identifier><identifier>EISSN: 2049-4408</identifier><identifier>DOI: 10.1302/0301-620X.98B12.BJJ-2016-0018.R1</identifier><identifier>PMID: 27909135</identifier><language>eng</language><publisher>England</publisher><subject>Age Distribution ; Atlanto-Axial Joint - diagnostic imaging ; Atlanto-Axial Joint - surgery ; Case-Control Studies ; Cervical Vertebrae - diagnostic imaging ; Cervical Vertebrae - pathology ; Child ; Child, Preschool ; Down Syndrome - complications ; Down Syndrome - pathology ; Female ; Humans ; Joint Instability - diagnostic imaging ; Joint Instability - etiology ; Joint Instability - pathology ; Joint Instability - surgery ; Male ; Radiography ; Reference Values ; Sex Distribution ; Spinal Cord Injuries - etiology</subject><ispartof>The bone & joint journal, 2016-12, Vol.98-B (12), p.1704-1710</ispartof><rights>2016 The British Editorial Society of Bone & Joint Surgery.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c183t-185c71d69a8d5bf704206ce322333fd939e7ba51ba645e81e715e97082657a953</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27909135$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nakamura, N</creatorcontrib><creatorcontrib>Inaba, Y</creatorcontrib><creatorcontrib>Aota, Y</creatorcontrib><creatorcontrib>Oba, M</creatorcontrib><creatorcontrib>Machida, J</creatorcontrib><creatorcontrib>N Aida</creatorcontrib><creatorcontrib>Kurosawa, K</creatorcontrib><creatorcontrib>Saito, T</creatorcontrib><title>New radiological parameters for the assessment of atlantoaxial instability in children with Down syndrome: the normal values and the risk of spinal cord injury</title><title>The bone & joint journal</title><addtitle>Bone Joint J</addtitle><description>To determine the normal values and usefulness of the C1/4 space available for spinal cord (SAC) ratio and C1 inclination angle, which are new radiological parameters for assessing atlantoaxial instability in children with Down syndrome.
We recruited 272 children with Down syndrome (including 14 who underwent surgical treatment), and 141 children in the control group. All were aged between two and 11 years. The C1/4 SAC ratio, C1 inclination angle, atlas-dens interval (ADI), and SAC were measured in those with Down syndrome, and the C1/4 SAC ratio and C1 inclination angle were measured in the control group.
The mean C1/4 SAC ratio in those requiring surgery with Down syndrome, those with Down syndrome not requiring surgery and controls were 0.63 (standard deviation (sd) 0.1), 1.15 (sd 0.13) and 1.29 (sd 0.14), respectively, and the mean C1 inclination angles were -3.1° (sd 10.7°), 15.8° (sd 7.3) and 17.2° (sd 7.3), in these three groups, respectively. The mean ADI and SAC in those with Down syndrome requiring surgery and those with Down syndrome not requiring surgery were 9.8 mm (sd 2.8) and 4.3 mm (sd 1.0), and 11.1 mm (sd 2.6) and 18.5 mm (sd 2.4), respectively.
The normal values of the C1/4 SAC ratio and the C1 inclination angle were found to be about 1.2° and 15º, respectively. Cite this article: Bone Joint J 2016;98-B:1704-10.</description><subject>Age Distribution</subject><subject>Atlanto-Axial Joint - diagnostic imaging</subject><subject>Atlanto-Axial Joint - surgery</subject><subject>Case-Control Studies</subject><subject>Cervical Vertebrae - diagnostic imaging</subject><subject>Cervical Vertebrae - pathology</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Down Syndrome - complications</subject><subject>Down Syndrome - pathology</subject><subject>Female</subject><subject>Humans</subject><subject>Joint Instability - diagnostic imaging</subject><subject>Joint Instability - etiology</subject><subject>Joint Instability - pathology</subject><subject>Joint Instability - surgery</subject><subject>Male</subject><subject>Radiography</subject><subject>Reference Values</subject><subject>Sex Distribution</subject><subject>Spinal Cord Injuries - etiology</subject><issn>2049-4394</issn><issn>2049-4408</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kc9u1DAQhyMEolXpKyAfe8ni8Z_E5gRtoVBVIFUgcbOceMK6JPFie9nu0_CqONsWXzyyf_48o6-qzoCugFP2hnIKdcPoj5VW58BW59fXNaPQ1JSCWt3Cs-qYUaFrIah6_lRzLY6q05TuaFmKAgh4WR2xVlMNXB5Xf7_gjkTrfBjDT9_bkWxstBNmjIkMIZK8RmJTwpQmnDMJA7F5tHMO9t6XtJ9Ttp0ffd6XmvRrP7qIM9n5vCaXYTeTtJ9dDBO-PaDmEKfy7I8dt5iInd3hNPr0a0GnjZ_LbR-iK7S7bdy_ql4Mdkx4-rifVN8_fvh28am--Xr1-eL9Td2D4rkGJfsWXKOtcrIbWioYbXrkjHHOB6e5xrazEjrbCIkKsAWJuqWKNbK1WvKT6uyBu4nhd2ktm8mnHscyKoZtMqCEVIy2IEr03UO0jyGliIPZRD_ZuDdAzWLKLKbMYsocTJliyiymzGLK3EJBvH78bdtN6P4Dnrzwf_sqkw4</recordid><startdate>201612</startdate><enddate>201612</enddate><creator>Nakamura, N</creator><creator>Inaba, Y</creator><creator>Aota, Y</creator><creator>Oba, M</creator><creator>Machida, J</creator><creator>N Aida</creator><creator>Kurosawa, K</creator><creator>Saito, T</creator><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>201612</creationdate><title>New radiological parameters for the assessment of atlantoaxial instability in children with Down syndrome: the normal values and the risk of spinal cord injury</title><author>Nakamura, N ; Inaba, Y ; Aota, Y ; Oba, M ; Machida, J ; N Aida ; Kurosawa, K ; Saito, T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c183t-185c71d69a8d5bf704206ce322333fd939e7ba51ba645e81e715e97082657a953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Age Distribution</topic><topic>Atlanto-Axial Joint - diagnostic imaging</topic><topic>Atlanto-Axial Joint - surgery</topic><topic>Case-Control Studies</topic><topic>Cervical Vertebrae - diagnostic imaging</topic><topic>Cervical Vertebrae - pathology</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Down Syndrome - complications</topic><topic>Down Syndrome - pathology</topic><topic>Female</topic><topic>Humans</topic><topic>Joint Instability - diagnostic imaging</topic><topic>Joint Instability - etiology</topic><topic>Joint Instability - pathology</topic><topic>Joint Instability - surgery</topic><topic>Male</topic><topic>Radiography</topic><topic>Reference Values</topic><topic>Sex Distribution</topic><topic>Spinal Cord Injuries - etiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nakamura, N</creatorcontrib><creatorcontrib>Inaba, Y</creatorcontrib><creatorcontrib>Aota, Y</creatorcontrib><creatorcontrib>Oba, M</creatorcontrib><creatorcontrib>Machida, J</creatorcontrib><creatorcontrib>N Aida</creatorcontrib><creatorcontrib>Kurosawa, K</creatorcontrib><creatorcontrib>Saito, T</creatorcontrib><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>The bone & joint journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nakamura, N</au><au>Inaba, Y</au><au>Aota, Y</au><au>Oba, M</au><au>Machida, J</au><au>N Aida</au><au>Kurosawa, K</au><au>Saito, T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New radiological parameters for the assessment of atlantoaxial instability in children with Down syndrome: the normal values and the risk of spinal cord injury</atitle><jtitle>The bone & joint journal</jtitle><addtitle>Bone Joint J</addtitle><date>2016-12</date><risdate>2016</risdate><volume>98-B</volume><issue>12</issue><spage>1704</spage><epage>1710</epage><pages>1704-1710</pages><issn>2049-4394</issn><eissn>2049-4408</eissn><abstract>To determine the normal values and usefulness of the C1/4 space available for spinal cord (SAC) ratio and C1 inclination angle, which are new radiological parameters for assessing atlantoaxial instability in children with Down syndrome.
We recruited 272 children with Down syndrome (including 14 who underwent surgical treatment), and 141 children in the control group. All were aged between two and 11 years. The C1/4 SAC ratio, C1 inclination angle, atlas-dens interval (ADI), and SAC were measured in those with Down syndrome, and the C1/4 SAC ratio and C1 inclination angle were measured in the control group.
The mean C1/4 SAC ratio in those requiring surgery with Down syndrome, those with Down syndrome not requiring surgery and controls were 0.63 (standard deviation (sd) 0.1), 1.15 (sd 0.13) and 1.29 (sd 0.14), respectively, and the mean C1 inclination angles were -3.1° (sd 10.7°), 15.8° (sd 7.3) and 17.2° (sd 7.3), in these three groups, respectively. The mean ADI and SAC in those with Down syndrome requiring surgery and those with Down syndrome not requiring surgery were 9.8 mm (sd 2.8) and 4.3 mm (sd 1.0), and 11.1 mm (sd 2.6) and 18.5 mm (sd 2.4), respectively.
The normal values of the C1/4 SAC ratio and the C1 inclination angle were found to be about 1.2° and 15º, respectively. Cite this article: Bone Joint J 2016;98-B:1704-10.</abstract><cop>England</cop><pmid>27909135</pmid><doi>10.1302/0301-620X.98B12.BJJ-2016-0018.R1</doi><tpages>7</tpages></addata></record> |
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| subjects | Age Distribution Atlanto-Axial Joint - diagnostic imaging Atlanto-Axial Joint - surgery Case-Control Studies Cervical Vertebrae - diagnostic imaging Cervical Vertebrae - pathology Child Child, Preschool Down Syndrome - complications Down Syndrome - pathology Female Humans Joint Instability - diagnostic imaging Joint Instability - etiology Joint Instability - pathology Joint Instability - surgery Male Radiography Reference Values Sex Distribution Spinal Cord Injuries - etiology |
| title | New radiological parameters for the assessment of atlantoaxial instability in children with Down syndrome: the normal values and the risk of spinal cord injury |
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