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Quantitative evaluation of microradiographic sections. Trabecular structure was significantly enhanced in the estrogen (E)-treated group compared to the osteoporotic C (C) group, surpassing levels observed in the sham group. Alendronate (ALN) was slightly improved compared to C. Callus density was enhanced under E treatment and less under ALN supplementation. P values of <0.05 were considered to be significant (* P < 0.05 vs. sham, ∆ P < 0.05 vs. C, • P < 0.05 vs. E)
