Can Tuba Selcuk, Yilmaz Behice Kaniye, Ozdemir Sevim
Department of Radiology, Istanbul Haseki Training and Research Hospital, Istanbul, Turkey.
Pol J Radiol. 2021 Jun 25;86:e387-e393. doi: 10.5114/pjr.2021.107726. eCollection 2021.
In this retrospective study, we aimed to investigate the possible effects of transitional vertebra anatomy on facet joint tropism and orientation by evaluating lumbar magnetic resonance imaging (MRI) studies performed at our institution.
We included 84 patients with sacralization of the L5 vertebra and an equal number of patients with a radiology report within normal limits as the control group in our study. We compared facet tropism (FT) and orientation between both groups.
In both the sacralization group and the control group, the facet orientation angle showed a significant increasing trend from the L1-L2 level to the L5-S1 level ( < 0.001). The orientation angle of the L5-S1 level was higher in the sacralization group compared to the control group ( < 0.01). In the evaluation of FJ orientation between the sacralization and control groups, we found that coronal orientation was significantly more frequent at the L5-S1 level in the sacralization group. When the 2 groups were compared with regard to tropism at each spinal level, the sacralization group had a significantly higher FT frequency at the L5-S1 level ( < 0.001).
To our knowledge, this is the first study to evaluate the relationship between sacralization and facet joint tropism. However, there were no relationships between facet degeneration, disc degeneration/herniation, and sacralization. Our results indicate that, although patients with sacralization and controls had similar characteristics in most assessments, they demonstrated significant differences at the L5-S1 level in terms of orientation and tropism.
在这项回顾性研究中，我们旨在通过评估在我们机构进行的腰椎磁共振成像（MRI）研究，探讨过渡椎骨解剖结构对小关节不对称性和方向的可能影响。
我们纳入了84例L5椎体骶化的患者，并纳入了数量相等的放射学报告正常的患者作为对照组。我们比较了两组之间的小关节不对称性（FT）和方向。
在骶化组和对照组中，小关节方向角从L1-L2水平到L5-S1水平均呈现出显著增加的趋势（<0.001）。与对照组相比，骶化组L5-S1水平的方向角更高（<0.01）。在评估骶化组和对照组之间的小关节方向时，我们发现骶化组在L5-S1水平冠状方向明显更常见。当比较两组在每个脊柱水平的不对称性时，骶化组在L5-S1水平的FT频率显著更高（<0.001）。
据我们所知，这是第一项评估骶化与小关节不对称性之间关系的研究。然而，小关节退变、椎间盘退变/突出与骶化之间没有关系。我们的结果表明，尽管骶化患者和对照组在大多数评估中具有相似的特征，但他们在L5-S1水平的方向和不对称性方面表现出显著差异。
