摘要：This paper compared bone density loss on radial and ulnar sides of the second metacarpal on the mid-shaft and base, using microdensitometry. The specimens were 114 male and 115 female Japanese cadavers aged 30 to 98 years. On the mid-shaft, cortical thickness and total bone density were greater on the ulnar side than on the radial. On the base, total bone density was greater on the ulnar part, followed by the middle, than on the radial, regardless of age. Bone density loss was more considerable in women than in men, and on the base than on the mid-shaft of bone, regardless of side and part. Apparent bone density indicated no significant differences in its aging between radial and ulnar sides on both mid-shaft and base of the bone.
