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  • Title: Relationships between quantitative histological measurements and noninvasive assessments of bone mass.
    Author: Cosman F, Schnitzer MB, McCann PD, Parisien MV, Dempster DW, Lindsay R.
    Journal: Bone; 1992; 13(3):237-42. PubMed ID: 1637570.
    Abstract:
    We performed a comprehensive analysis of the relationships between histologic indices in the iliac crest (cancellous bone volume, trabecular structural indices, cortical width, and core width) and bone density in the spine, hip, and wrist in 81 patients with various metabolic bone diseases including osteoporosis, osteomalacia, hyperparathyroidism, and Paget's disease. In the whole group, all of the histologic indices correlated significantly with bone mineral density (BMD) of the spine and the three regions of the hip (r = 0.28-0.73), with the exception of cortical width which correlated with the hip but not the spine (r = 0.21). There was no relationship between the histologic variables and either the distal or proximal radius. When the osteoporotic subgroup was considered separately, the relationships between BMD and both cancellous bone volume and the structural indices (trabecular number, separation, and thickness) were lost. In contrast, cortical width correlated more strongly with both spine and hip BMD. The relationship between core width and the spine was lost but persisted in the hip region. In female osteoporotic patients alone, only cortical width remained significantly correlated with spine or hip BMD. We conclude that the relationships between bone densities in the axial and peripheral regions and histomorphometric variables in iliac crest are not constant. In addition, cancellous bone volume and the trabecular structural indices relate well to noninvasive axial BMD measurements only in a heterogenous group with a large variance in both parameters. In the more homogeneous group with osteoporosis, cortical width appears to be a more powerful predictor of BMD at the important sites of osteoporotic fracture.
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