Transfeldt E E, Robertson D, Bradford D S
University of Minnesota Hospital, Minneapolis 55455.
J Spinal Disord. 1993 Dec;6(6):507-12. doi: 10.1097/00002517-199306060-00006.
The extraforaminal ligaments of the lumbosacral spine were studied in 34 cadavers. The corporotransverse ligament attached to the body and transverse process of the same vertebra. The ligament may entrap the exiting nerve root below it in rotary subluxation or in complete disk space loss. The lumbosacral ligament extends from the transverse process of L5 and the L5-S1 disk to the sacral ala, forming the roof of the lumbosacral tunnel through which the L5 spinal nerve passes. This may be the site of extraforaminal entrapment if lateral disk herniations, osteophytes, or tumor metastasis are also present. The nerve suspensory ligament attaches to the nerve sheath and to the disk and is felt to be significant as a vehicle for mechanoreception.
对34具尸体的腰骶椎椎间孔外韧带进行了研究。体横韧带附着于同一椎体的椎体和横突。在旋转半脱位或椎间盘间隙完全消失时，该韧带可能会压迫其下方穿出的神经根。腰骶韧带从L5横突和L5-S1椎间盘延伸至骶骨翼，形成L5脊神经穿过的腰骶管顶部。如果同时存在外侧椎间盘突出、骨赘或肿瘤转移，此处可能是椎间孔外卡压的部位。神经悬韧带附着于神经鞘和椎间盘，被认为是机械感受的重要载体。
