Clinical and Roentgenographic Studies about the Ossification of the Thoracic and Lumbar Yellow Ligament

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1. The authores examined the frequency of ossification of the yellow ligament (O. Y. L.) in the lower thoracic and upper lumbar spine from the lateral roentgenograms focused at Th10. The number of the cases were 149, who had consulted for complaint of lumbago at our clinic and related hospitals.2. About 20% of these cases had O. Y. L.3. All the patients operated on in our clinic for myelopathy due to O. Y. L. had clear sensory disturbance. The most disturbed sensation was vibration.4. Clear difference in the anteroposterior canal diameter of the thoracic spine was existed between operated myelopathy cases and 149 cases. Myelopathy cases showed narrow canal.5. Operated myelopathy cases due to O. Y. L. showed the narrow cervical canal coincidently.
西日本整形・災害外科学会の論文