Itoh S, Ohta T, Samejima H, Shinomiya K
Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Nakano General Hospital, Japan.
J Hand Surg Br. 1999 Jun;24(3):334-7. doi: 10.1054/jhsb.1999.0073.
Changes in bone mineral density with age were measured in the distal radius of healthy adults using dual energy X-ray absorptiometry. A total of 2789 healthy women (20-95 years old) and 1255 healthy men (20-87 years old), and 72 women (52-94 years old) and 23 men (51-79 years old) with fractures of the distal radius were assessed. Bone mineral density remains relatively stable in men despite aging, and was significantly higher than in women in every decade. In women aged 70 years and more, the bone mineral density was significantly lower in the fracture group than the non-fracture group. In men with fractures of the distal radius, there were no significant differences between bone mineral density and age. In the fracture groups loss of radial inclination after reduction correlated with decreased bone mineral density, but there was no significant regression between bone mineral density and the decrease in radial length or palmar tilt.
采用双能X线吸收法测量健康成年人桡骨远端随年龄变化的骨密度。共评估了2789名健康女性（20 - 95岁）、1255名健康男性（20 - 87岁），以及72名桡骨远端骨折的女性（52 - 94岁）和23名桡骨远端骨折的男性（51 - 79岁）。尽管男性会衰老，但骨密度仍相对稳定，且在每个十年中均显著高于女性。在70岁及以上的女性中，骨折组的骨密度显著低于非骨折组。在桡骨远端骨折的男性中，骨密度与年龄之间无显著差异。在骨折组中，复位后桡骨倾斜度的丢失与骨密度降低相关，但骨密度与桡骨长度或掌倾角减小之间无显著回归关系。
