part_of total volumetric bone mineral density trabecular volumetric bone mineral density 2013-07-29T14:36:10Z CMO:0001729 JSmith Measurement of the mineral mass per unit volume of trabecular bone. Bone is the hard, rigid form of connective tissue constituting most of the skeleton of vertebrates and composed chiefly of calcium salts. Trabecular or spongy bone is the porous type of bone found in the vertebrae and at all articulating joints, consisting of an irregular three-dimensional array of boney rods and plates (trabeculae) which themselves are composed of a composite material with bone marrow filling the spaces of the pores. clinical_measurement_ontology trabecular vBMD trabecular volumetric BMD