The Impact of the Placement of the L5 Vertebra in Relation to the Intercrest Line on the Level of Disc Herniation.

Recai Engin, Yunus Emre Durmus, Fatih Tomakin, Aykan Ulus, Alparslan Senel
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Abstract

Aim: To determine whether there is a correlation between a deeply seated L5 vertebra in relation to the intercrest line (ICL) and the level of degeneration of lumbar discs.

Material and methods: The study included 152 patients who underwent surgery for lumbar disc herniation. After analyzing the radiographs, the patients were separated into two groups. Group 1 patients had an ICL that passed through the L4 corpus, and Group 2 patients had an ICL that passed through the L4-5 disc distance or the L5 vertebra. Group 1 patients were classified as having a deeply seated L5 vertebra, while Group 2 patients were classified as not having a deeply seated L5 vertebra.

Results: The study found that male patients had a significantly higher incidence of a deeply seated L5 vertebra compared to female patients (p=0.003). Patients who underwent surgery at the L4?5 level exhibited disc heights that were notably higher than those who underwent surgery at the L5-S1 level. In Group 1, 68% of the patients had surgery at the L4-5 level, compared to only 41.7% in Group 2 (p=0.009).

Conclusion: When investigating the effects of the position of the L5 vertebra in relation to the ICL at the L4-5 and L5-S1 disc levels, the study found that having a deeply seated L5 vertebra protected against L5-S1 disc herniation and that L4-5 disc herniation was more common in these patients. This is believed to be due to the L5?S1 segment being less mobile when the L5 vertebra is deeply seated.

L5 椎骨位置与椎间沟线的关系对椎间盘突出程度的影响。
目的:本研究的目的是确定L5椎体与椎间孔线的深度位置与腰椎间盘退变程度之间是否存在相关性:研究对象包括 152 名接受腰椎间盘突出症手术的患者。分析X光片后,患者被分为两组。第一组患者的椎间隙线穿过 L4 椎体,第二组患者的椎间隙线穿过 L4-5 椎间盘间距或 L5 椎体。第一组患者的 L5 椎体位置较深,而第二组患者的 L5 椎体位置不深:研究发现,与女性患者相比,男性患者L5椎体位置过深的发生率明显更高(P=0.003)。在 L4-5 水平接受手术的患者的椎间盘高度明显高于在 L5-S1 水平接受手术的患者。在第一组中,68%的患者在L4-5水平进行了手术,而在第二组中,只有41.7%的患者在L4-5水平进行了手术(P=0.009):结论:在研究 L5 椎体在椎间隙线上的位置对 L4-5 和 L5-S1 椎间盘水平的影响时,研究发现 L5 椎体位置较深可防止 L5-S1 椎间盘突出,而 L4-5 椎间盘突出在这些患者中更为常见。这被认为是由于当L5椎体位于深部时,L5-S1节段的活动度较小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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