{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T02:00:24Z","timestamp":1777946424243,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2008,3,7]],"date-time":"2008-03-07T00:00:00Z","timestamp":1204848000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2008,3,7]],"date-time":"2008-03-07T00:00:00Z","timestamp":1204848000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pediatr Neurosurg"],"abstract":"<jats:p>The hallmarks of tethered cord syndrome are a low-lying conus medullaris and a thick filum terminale. In diagnosing the tethered cord syndrome, the thick filum terminale is often defined as that greater than 2 mm in diameter. The cutoff of 2 mm in diameter was derived from myelographic measurements a few decades ago, and the true normal diameter of the filum terminale diameter in children or adults remains unknown. We measured the diameters of the filum terminale in vivo in the operating room on 31 children (age range = 2\u201314 years; mean age = 5 years) undergoing selective dorsal rhizotomy for spastic cerebral palsy. None of them had clinical evidence of tethered cord syndrome. The conus medullaris and filum terminale were videotaped intraoperatively and images were transferred to an image analyzer; the filum diameters at 10 and 15 mm caudal to the conus medullaris were then measured extraopera-tively using the computer graphics system. The diameter of the filum at 10 and 15 mm caudal to the conus was 1,211 \u00b1 209 and 1,163 \u00b1 245 \u00b5m (mean \u00b1 SD), respectively. In all children except one, the conus medullaris ended above the L2 level. The data indicate that filum terminales greater than 2 mm in diameter in children are abnormally thick.<\/jats:p>","DOI":"10.1159\/000121263","type":"journal-article","created":{"date-parts":[[2008,3,7]],"date-time":"2008-03-07T05:47:34Z","timestamp":1204868854000},"page":"257-259","source":"Crossref","is-referenced-by-count":68,"title":["Normal Diameter of Filum terminate in Children: In vivo Measurement"],"prefix":"10.1159","author":[{"given":"Kent D.","family":"Yundt","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.S.","family":"Park","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruce A.","family":"Kaufman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2008,3,7]]},"container-title":["Pediatric Neurosurgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000121263","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T17:21:09Z","timestamp":1777742469000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000121263"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,3,7]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000121263","archive":["Portico"],"relation":{},"ISSN":["1016-2291","1423-0305"],"issn-type":[{"value":"1016-2291","type":"print"},{"value":"1423-0305","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,3,7]]}}}