{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T02:16:14Z","timestamp":1767924974767,"version":"3.49.0"},"reference-count":24,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2013,8,12]],"date-time":"2013-08-12T00:00:00Z","timestamp":1376265600000},"content-version":"vor","delay-in-days":11,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2013,8]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To establish a preliminary magnetic resonance imaging (<jats:styled-content style=\"fixed-case\">MRI<\/jats:styled-content>) database of whole spine of healthy <jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>hinese adolescents.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p><jats:styled-content style=\"fixed-case\">MRI<\/jats:styled-content> examination of whole spine and hindbrain was performed in 41 enrolled students aged 11\u201317 years (mean age 13.95; 18 males, 23 females) using a 1.5\u2010<jats:styled-content style=\"fixed-case\">T MR S<\/jats:styled-content>canner. Measurements of the ratio of anteroposterior (<jats:styled-content style=\"fixed-case\">AP<\/jats:styled-content>) and transverse (<jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content>) diameters of the cord, cerebellar tonsillar level related to the basion\u2010opsithion (<jats:styled-content style=\"fixed-case\">BO<\/jats:styled-content>) line, location of conus medullaris, total cord length, total vertebral length, cord\/vertebral length ratio, thoracic cord area, thoracic vertebral area, thoracic cord\/vertebral area ratio were obtained.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean values of cervical <jats:styled-content style=\"fixed-case\">AP<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content> were 6.63\u2009mm and 12.21\u2009mm, respectively. The mean level of cerebellar tonsillar related to <jats:styled-content style=\"fixed-case\">BO<\/jats:styled-content> line was 3.97\u2009mm. Mean level of conus medullaris located in <jats:styled-content style=\"fixed-case\">L<jats:sub>1<\/jats:sub><\/jats:styled-content> lower 1\/3. Total cord length was 399.34\u2009mm, total vertebral length was 529.49\u2009mm, Cord\/vertebral length ratio was 0.75 and thoracic cord\/vertebral area ratio was 0.17 on average. Vertebral length was correlated with age (<jats:italic>r<\/jats:italic> = 0.352, <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> = 0.024) whereas cord length and their ratio were not (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &gt; 0.05). Compared with female, male had significantly larger cervical <jats:styled-content style=\"fixed-case\">AP<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">TS<\/jats:styled-content>, longer cervical cord (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.01), higher position of conus medullaris (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic> &lt; 0.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p><jats:styled-content style=\"fixed-case\">MRI<\/jats:styled-content> is a useful tool for assessment of the whole spine. The longitudinal and cross\u2010sectional morphology of spinal cord in healthy <jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>hinese adolescents may benefit further study of spine cord in adolescent idiopathic scoliosis as well as in other spine diseases.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.12046","type":"journal-article","created":{"date-parts":[[2013,8,12]],"date-time":"2013-08-12T11:11:28Z","timestamp":1376305888000},"page":"164-170","source":"Crossref","is-referenced-by-count":12,"title":["Whole\u2010spine Magnetic Resonance Imaging Study in Healthy <scp>C<\/scp>hinese Adolescents"],"prefix":"10.1111","volume":"5","author":[{"given":"Li\u2010feng","family":"Lao","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Renji Hospital Shanghai Jiaotong University School of Medicine  Shanghai"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zheng\u2010guang","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Peking Union Medical College Hospital  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gui\u2010xing","family":"Qiu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Peking Union Medical College Hospital  Beijing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jian\u2010xiong","family":"Shen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Peking Union Medical College Hospital  Beijing 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