Differentiation and classification of thoracolumbar transitional vertebrae
Differentiation and classification of thoracolumbar transitional vertebrae
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DOI：
10.1111/joa.12781
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发表时间：
2018-05-01
影响因子：
2.4
通讯作者：
Page, Benedict J.
中科院分区：
文献类型：
--
作者：
Du Plessis, Anneli M.;Greyling, Linda M.;Page, Benedict J.
文献表明，任何连接处的过渡性椎体的特征都保留了脊柱中两个相邻区域的特征。目前，还没有发表的文献描述胸腰段过渡性椎体（TLTV）的患病率或形态。本研究的目的是确定胸腰椎连接处过渡性椎体的定性特征，并建立一种技术来区分可能发现的各种亚型。在本研究中，从骨骼遗骸中选择的脊柱（n=35）进行了评估。根据每个相关区域椎体的非典型特征取椎体。根据胸腰椎连接处椎体重叠的胸椎和腰椎特征定性鉴定过渡性椎体。观察到以下重叠特征：横突发育不全或发育不全，上关节突方向不规则，乳头体不典型。结果显示，最常见的过渡性椎体位于胸椎区域（f=23）。第二个最常见的部位是腰椎（f=10）。在选择的两个标本中（f=2），存在额外的第13节胸椎，其功能为过渡椎。本研究的结论是，可以准确地识别胸腰椎连接处的过渡椎体特征。此外，还可以根据椎体在脊柱中所处的区域以及椎体相邻区域椎节的相对数量来区分各种亚型。这为研究人员区分胸腰椎连接处的过渡性椎体与明显不同的典型胸椎或腰椎提供了定性工具。
The literature states that transitional vertebrae at any junction are characterized by features retained from two adjacent regions in the vertebral column. Currently, there is no published literature available that describes the prevalence or morphology of thoracolumbar transitional vertebrae (TLTV). The aim of this study was to identify the qualitative characteristics of transitional vertebrae at the thoracolumbar junction and establish a technique to differentiate the various subtypes that may be found. A selection of vertebral columns from skeletal remains (n=35) were evaluated in this study. Vertebrae were taken based on features that are atypical for vertebrae in each relative region. The transitional vertebrae were qualitatively identified based on overlapping thoracic and lumbar features of vertebrae at the thoracolumbar junction. The following general overlapping characteristics were observed: aplasia or hypoplasia of the transverse process, irregular orientation on the superior articular process and atypical mammillary bodies. The results show that the most frequent location of the transitional vertebrae was in the thoracic region (f=23). The second most frequent location was in the lumbar region (f=10). In two specimens of the selection (f=2), an additional 13th thoracic vertebra was present which functioned as a transitional vertebra. This study concluded that one can accurately identify the characteristics of transitional vertebrae at the thoracolumbar junction. In addition, the various subtypes can be differentiated according to the region in the vertebral column the vertebra is located in and the relative number of vertebral segments in the adjacent regions of the vertebral column. This provides a qualitative tool for researchers to differentiate the transitional vertebrae from distinctly different typical thoracic or lumbar vertebrae at the thoracolumbar junction.