【摘要】 本文分析了13例腰椎后缘骨内软骨结节并对其X线和CT扫描表现作了对比观察,其发病可能与椎缘骨近似,系在某种解剖缺陷基础上,脊椎经受长期的外力作用,髓核经骨突环与椎体间的薄弱点向后疝出所致。更多还原

【Abstract】 The clinical,radiological and CTmanifestations of 13 cases of lumbarposterior marginal intraosseous carti-laginous node（LPMN）were analyzed.The posterior inferior margin of L₄was the commonest site The trpicalradiological findings included a defe-ct in the posterior inferior margin ofvertebral body and behind the defecta bony ridge protruding into the spin-al canal.CT scans showed a cartilagi-nous node in the posterior zone of thevertebral plate.We suggest that LPMNresults from disc material herniatinginto the posterior aspect of vertebralbody through a ruptured cartilaginousend-plate during adolescence,it isvery similar to anterior marginal car-tilaginous node（AMCN）.更多还原