Leroux J L, Fuentes J M, Baixas P, Benezech J, Chertok P, Blotman F
Department of Physical Medicine, Lapeyronie Hospital, Montpellier, France.
Spine (Phila Pa 1976). 1992 Dec;17(12):1505-8. doi: 10.1097/00007632-199212000-00011.
This report concerns 15 adults (nine men and six women) who experienced lumbar and sciatic pain associated with an unusual defect of the edges of the vertebral bodies together with a small bony ridge protruding into the spinal canal. This lesion was well demonstrated by computed tomography and easily differentiated from the posterior longitudinal ligament or herniated disc calcifications, as well as from posterior degenerative ridge osteophytes. This lesion looked like the so-called lumbar posterior marginal node. First described in adolescents, this entity was considered as a traumatic fracture of the posterior ring apophysis. Recently, identical cases were noted in young adults in the absence of previous trauma, which were a particular type of marginal cartilaginous node. In the cases reported here, the computed tomographic scans suggested several mechanisms of formation of the vertebral lesion: a variant of marginal cartilaginous nodes; traumatic avulsion; avulsion related to disc herniation; and fusion of the avulsed bony fragment with the vertebral body.
本报告涉及15名成年人（9名男性和6名女性），他们经历了与椎体边缘异常缺损相关的腰腿痛和坐骨神经痛，同时有一小骨嵴突入椎管。计算机断层扫描很好地显示了这种病变，并且很容易与后纵韧带、椎间盘钙化以及后纵行增生骨赘区分开来。这种病变看起来像所谓的腰椎后缘结节。这种病变最初在青少年中被描述，曾被认为是后环骨骺的创伤性骨折。最近，在没有既往创伤的年轻成年人中也发现了相同的病例，这是一种特殊类型的边缘软骨结节。在本文报道的病例中，计算机断层扫描显示了椎体病变的几种形成机制：边缘软骨结节的变异型；创伤性撕脱；与椎间盘突出相关的撕脱；以及撕脱的骨碎片与椎体融合。
