Castellvi A E, Goldstein L A, Chan D P
Spine (Phila Pa 1976). 1984 Jul-Aug;9(5):493-5. doi: 10.1097/00007632-198407000-00014.
The relationship between herniated lumbar disc and abnormalities of the transverse process of the lumbosacral junction was investigated. Two hundred consecutive patients with positive myelographic findings of herniated lumbar disc were reviewed. Sixty patients presented abnormalities of the transverse process to satisfy the criteria for lumbosacral transitional vertebra. A new classification of lumbosacral transitional vertebra is presented based upon the morphologic and clinical characteristics with respect to herniated nucleus pulposus. Type I represents a "forme fruste" of lumbosacral transitional vertebra and shows no difference in the incidence of the location of herniations. In types III and IV, there are no herniations at the level of the lumbosacral transitional vertebra and no increase in the incidence of herniations just proximal to the lumbosacral transitional vertebra. The Type II lumbosacral transitional vertebra presents herniated lumbar disc at the level of transition. It also presents a greater than normal incidence of herniations at the level just above the lumbosacral transitional vertebra.
研究了腰椎间盘突出症与腰骶交界处横突异常之间的关系。回顾了200例腰椎间盘突出症脊髓造影检查结果呈阳性的连续患者。60例患者存在横突异常，符合腰骶部移行椎的标准。基于与髓核突出相关的形态学和临床特征，提出了一种新的腰骶部移行椎分类方法。I型代表腰骶部移行椎的“不完全型”，在突出部位的发生率上无差异。在III型和IV型中，腰骶部移行椎水平无突出，且在腰骶部移行椎近端的突出发生率也无增加。II型腰骶部移行椎在移行水平出现腰椎间盘突出。在腰骶部移行椎上方水平，其突出发生率也高于正常。
