The Level of Conus Medullaris in 629 Healthy Japanese Individuals
| Autor: | Kazuyoshi Kobayashi, Hiroyuki Tomita, Kei Ando, Hiroaki Nakashima, Shiro Imagama, Keigo Ito, Hiroyuki Koshimizu, Sadayuki Ito, Mikito Tsushima, Masaaki Machino, Yoshito Katayama, Naoki Segi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Pelvic tilt animal structures Article 03 medical and health sciences 0302 clinical medicine Healthy volunteers medicine magnetic resonance imaging conus medullaris medicine.diagnostic_test business.industry pelvic incidence Pelvic incidence Magnetic resonance imaging General Medicine Anatomy Spinal cord Sagittal plane Conus medullaris medicine.anatomical_structure healthy volunteers Medicine 030101 anatomy & morphology business 030217 neurology & neurosurgery height |
| Zdroj: | Journal of Clinical Medicine, Vol 10, Iss 3182, p 3182 (2021) Journal of Clinical Medicine Volume 10 Issue 14 |
| ISSN: | 2077-0383 |
| Popis: | The conus medullaris typically terminates at the L1 level however, variations in its level and the factors associated with the conus medullaris level are unclear. We investigated the level of conus medullaris on magnetic resonance imaging in healthy volunteers. In total, 629 healthy adult volunteers (≥50 individuals of each sex and in each decade of age from 20 to 70) were enrolled. The level of the conus medullaris was assessed based on the T2-weighted sagittal magnetic resonance images, and factors affecting its level were investigated employing multivariate regression analysis including the participants’ background and radiographical parameters. L1 was the most common conus medullaris level. Participant height was significantly shorter in the caudally placed conus medullaris (p = 0.013). With respect to the radiographical parameters, pelvic incidence (p = 0.003), and pelvic tilt (p = 0.03) were significantly smaller in participants with a caudally placed conus medullaris. Multiple regression analysis showed that the pelvic incidence (p < 0.0001) and height (p < 0.0001) were significant factors affecting the conus medullaris level. These results indicated that the length of the spinal cord varies little among individuals and that skeletal differences affect the level of the conus medullaris. |
| Databáze: | OpenAIRE |
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