Abstract:
: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.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Leroux JL,Fuentes JM,Baixas P,Benezech J,Chertok P,Blotman Fdoi
10.1097/00007632-199212000-00011keywords:
subject
Has Abstractpub_date
1992-12-01 00:00:00pages
1505-8issue
12eissn
0362-2436issn
1528-1159journal_volume
17pub_type
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