Fig. 7.
The osteoclast density within the fracture callus was measured by anti-cathepsin K staining. The number of multinucleated, anti-cathepsin K positive cells were counted in the fracture callus of both strains of animals at 1, 2, 4, and 6 weeks post-fracture. The results are expressed as the number of anti-cathepsin K positive osteoclasts per mm2 area of the callus. * Denotes significance at the p<0.05 level.