Glaudot Guillaume, Nunès Anthony, Lété Aegryan, Lengelé Benoît, Behets Catherine, Jankovski Aleksandar
Pole of Morphology, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium.
Institute of Neuroscience (IoNS), Université Catholique de Louvain (UCLouvain), Brussels, Belgium.
Surg Radiol Anat. 2025 Jul 2;47(1):168. doi: 10.1007/s00276-025-03681-1.
The localization of the human spinal cord (SC) segments remains a challenge without thorough post-mortem analysis and their relationship with the vertebrae has long been investigated. In this post-mortem study, we assessed the relationship between the cervical, thoracic, lumbar and sacral lengths of the SC and of the vertebral column (VC).
Twenty human SCs were extracted from the vertebral canal. The cervical, thoracic, lumbar and sacral regional lengths of SC and VC were measured by two examiners. Statistical analyses included t-test, ANOVA, Fisher's exact test, Kruskal-Wallis H-test and Pearson's correlation test.
No significant relationship was found between the sex of the subjects or the total SC length and its caudal limit in the vertebral canal. The length of the thoracic SC was significantly different between 3 groups of short, intermediate and long SCs, while no significant difference was observed in the lumbar and sacral SC regions. Highly significant correlations were observed between the thoracic SC length, on the one hand, and the total SC length, the thoracic VC length and the total VC length, on the other hand. The very constant length of the lumbar and sacral SC regions was not correlated with any regional SC or VC lengths.
This study confirms the constant length of the lumbar and sacral SC regions, independently of any other regional SC and VC measurements, while the thoracic region of the SC appears to be the main contributor in the variation of the total SC length.
在没有进行全面尸检分析的情况下，人类脊髓节段的定位仍然是一项挑战，并且其与椎骨的关系长期以来一直受到研究。在这项尸检研究中，我们评估了脊髓与脊柱的颈、胸、腰和骶段长度之间的关系。
从椎管中提取20个人类脊髓。由两名检查人员测量脊髓和脊柱的颈、胸、腰和骶段区域长度。统计分析包括t检验、方差分析、Fisher精确检验、Kruskal-Wallis H检验和Pearson相关检验。
在受试者性别、脊髓总长度与其在椎管中的尾端界限之间未发现显著关系。在短、中、长三组脊髓中，胸段脊髓长度存在显著差异，而腰段和骶段脊髓区域未观察到显著差异。一方面，胸段脊髓长度与脊髓总长度、胸段脊柱长度和脊柱总长度之间观察到高度显著的相关性。腰段和骶段脊髓区域长度非常恒定，与脊髓或脊柱的任何区域长度均无相关性。
本研究证实了腰段和骶段脊髓区域长度恒定，独立于脊髓和脊柱的任何其他区域测量值，而脊髓的胸段似乎是脊髓总长度变化的主要影响因素。
