腰骶椎移行变导致椎间盘疝的CT表现分析

【摘要】 目的：利用CT探讨腰骶椎移行变与发生腰椎间盘疝的相关性。方法：回顾性分析135例腰骶椎移行变患者，移行椎的分型及CT表现、发生椎间盘疝的位置、突出类型、突出的形态及程度。结果：腰椎骶化较骶椎腰化常见，腰骶椎移行变引起腰椎间盘疝容易发生在L4～5间隙，多累及多个椎间盘，硬膜囊和神经根受压严重。结论：腰骶椎移行变，容易导致腰椎间盘疝的发生，且发生病变的程度较重。

【关键词】 腰骶椎移行变； 椎间盘疝； CT表现

【Abstract】 Objective： To study the relation between Intervertebral disc herniation and lumbosacral transitional vertebra on CT. Method： There were 135 patients with lumbosacral transitional vertebra， the type of lumbosacral transitional vertebra and the CT manifestations， the anatomy， type， form and severity of Intervertebral disc herniation were analyzed for all patients. Result： The incidence of Lumbar sacral was more than that of Sacral vertebra waist， lumbosacral transitional vertebra were prone to caused lumbar disk hernia in lumbar 4/5 clearance， many involving multiple intervertebral disc， dural sac and nerve root were compressed severely. Conclusion： Lumbosacral transitional vertebra easily lead to the occurrence of lumbar disc hernia， and the extent of the lesions occur heavier.

【Key words】 Lumbosacral transitional vertebra； Intervertebral disc herniation； CT manifestations

First-author’s address： The Fifth People’s Hospital of Nanchong， Nanchong 637100， China

1 资料与方法

腰骶椎移行变分型诊断标准：根据金冈分型标准，首先确定是否存在胸腰部移行椎，然后以此为基准由头侧向尾侧对腰椎进行计数，存在腰骶部移行椎者如为4个腰椎即为腰椎骶化 ，如为6个腰椎则为骶椎腰化。

所有病例由本科主治医师以上职称2～3人阅片，根据上述标准进行诊断，对CT图像进行分析。

2 结果

2.1 腰骶部移行椎的分型 腰椎骶化76例，占56.3%，骶椎腰化59例，占43.7%。