骨密度与股骨颈抗骨折能力对骨质疏松诊断价值的比较研究

Comparison study of bone mineral density (BMD) and femoral neck strength (FS) in osteoporosis diagno-sis

目的 探索骨密度及股骨颈抗骨折能力两种骨质疏松的诊断方法在临床上应用中各自的特点。方法 用双能X线骨密度仪(DEXA)及神经-肌肉-关节-骨骼综合测量分析系统(MES)分别对118例绝经后妇女进行测量,比较两者的结果,探讨两者的差异的原因。结果 118例绝经后妇女中被DEXA诊断为骨质疏松者48人,患病率为40.67％。有24例被MES诊断为骨质疏松,患病率为20.34％。结论 研究提示DXEA测定骨密度(BMD)的方法更容易发现在正常体重者中的骨质疏松患者,而MES测定股骨颈抗骨折能力指标(FS)的方法在超体重和肥胖者中的骨质疏松诊断中占有优势。FS和BMD结合应用于骨质疏松诊断克服了骨密度(BMD)由于体重影响造成的漏诊和误诊现象。即在正常体重的患者进行诊断时选择BMD,而对于超体重和肥胖者使用FS指标则更为合理。

Objective To find the difference between bone mineral density (BMD) and femoral neck strength (FS) in osteoporosis diagnosis.Methods 118 postmenopausal women received the examination of Dual Energy X-ray Absorption Densitometry (DEXA) and Muscle Evaluative System (MES) .Results The prevalence of osteoporosis by DEXA's BMD T-score in the subjects is 40.67% , but the prevalence by MES's FS is 20.34% . Conclusion Femoral neck strength (FS) analysis introduced in the diagnosis of osteoporosis can avoid missed di-agnosis and false alarm by simple BMD evaluation.