One Autopsy Case of the Posterior Longitidunal Ligament Ossification

概要

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In the foreign liturature, any previous reports of the posterior longitidunal ligament ossification can not be found, but in Japan, several cases are found. Since Tsukimoto and his mates have reported it for the first time in Japan, 1960, a same thing was reported ten-odd times. Only one autopsy case reported by Terayama in 1964. Whereas mecanism of the ossification remain to be discussed.Our autopsy case was man, whose age was 51. First symptome rapidly became serious. Fourteen days after having been ill in bed, laminectomy was done. On the second day following operation, respiration paralysis was suddenly occurred and he died. By macroscopical findings the posterior longitudinal ligment was rising between the second and the fourth cervical vertebra and in it's central part a protuberance was found, and that it pressed extremely the anterior part of the spinal cord. By microscopical findings, the ossification was in advanced stage.We tried to confirm the mechanism of the ossification and it's relation with the clinical figure. Then, from this case, we think the important parts of the ossification is played by the prolapse of the cervical nucleus pulposus, and it's effects on the clinical figure is caused not only by direct pressure, but also the spinal cord by circulation disorder of the anterior spinal atery.
西日本整形・災害外科学会の論文