As a screening tool, the OSTA index can help identify high-risk individuals undergoing spinal surgery who are likely to have low lumbar trabecular BMD and BMC as measured by QCT. Diagnostic thresholds for osteoporosis may be set at lumbar QCT-BMC <663.86 mg in men or <521.65 mg in women.
Li et al. (Tue,) studied this question.
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