The BMD ratio of the lateral trochanter to the neck gradually reduced with age, whereas that of the medial trochanter to the neck gradually increased.

• 外侧大转子至股骨颈的骨矿物质密度随年龄逐渐减少，而内侧外侧大转子至股骨颈的骨矿物质密度随年龄逐渐增加。