在X线问世前,采用组织学方法来测量骨矿物质量,目前国外较多应用γ光子吸收法测量活体骨矿物质。Cameron等首先采用单束光子吸收法测量桡骨骨线密度(BMC),提出桡骨BMC与骨核和总体钙呈相关性,是反映骨矿物质量微小变化的较好方法。本文旨在探讨小儿维生素D缺乏性佝偻病时桡骨骨矿物质含量的变化。 Before the advent of X-ray, the histological method was used to measure the bone mineral mass. At present, more foreign countries use γ photon absorption method to measure the living bone mineral. Cameron et al. First used a single-beam photon absorption method to measure the radial bone mineral density (BMC). It was suggested that the radial bone BMC correlates with the nucleus and total calcium, which is a good way to reflect the small change of bone mineral content. This article aims to investigate changes in the mineral content of the radial bone in children with vitamin D-deficient rickets.