Age Differences in the Radiographic Density of Human Lumbar Vertebrae
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Since vertebral osteoporosis is roentgenographically characterized by an increase in the bone permeability, the vertebral density of the different aged from the young up to the old was observed using roentgenographic measurements and some informations were obtained about its age differences.The subjects examined were 156 cases (_??_73, _??_83) with low back pain without any evidence of tuberculosis and tumors, from age 13 to 79, who had recently visited our clinic. In addition, out of them 16 cases of compression fracture were also investigated.In both sexes, the vertebral density increares with the age, and it is characteristic that the female shows a comparatively high density from the forties. This period of age corresponds to menopause and it seems to be attributable to the fall of anabolic hormon.The cases with the compression fracture are most common in the fifties and sixties, and next in seventies. As regards to the relationship between the vertebral density and fracture, it is demonstrated that the higher the vertebral density is, the more often the fracture occurs.
- 西日本整形・災害外科学会の論文
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