【摘要】 目的：揭示正常人跟骨骨密度的增龄变化规律及脊柱椎体自发性骨折的骨密度阈值，探讨超声波法测量骨密度的临床应用价值。方法：用Ｌｕｎａｒ Ａｃｈｉｌｌｅｓ系统对正常人男４１０例，女４５０例和骨质疏松症患者１４５例进行右侧跟骨骨密度测定。结果：正常人随着年龄的增加，ＢＵＡ、ＳＯＳ和Ｓｔｉｆｆｎｅｓｓ明显减少，女性在老年前期以后有加速减少的趋势。脊柱椎体自发性骨折的ＢＵＡ、ＳＯＳ和Ｓｔｉｆｆｎｅｓｓ阈值，男性分别为（８６±１０）ｄＢ／ＭＨｚ，（１４８０±２４）ｍ ／ｓ，（５３．０±１０．２）％ ；女性分别为（８７±９）ｄＢ／ＭＨｚ，（１４７０±２７）ｍ ／ｓ，（５０．５±９３）％ 。结论：正常人男女性超声波测量值与年龄呈负相关，当ＢＵＡ，ＳＯＳ和Ｓｔｉｆｆｎｅｓｓ 低于或接近阈值时，容易发生脊柱椎体自发性骨折，超声波法测量骨密度有广泛的临床应用价值更多还原

【Abstract】 Objective:The paper was to study the changing rules of ultrasound measurements of calcaneus with age in normal people, and to determine the ultrasound measurement thresholds of spontaneous fractures of the spinal column, and to discuss the practically clinical value of ultrasound measurement technology. The paper was to study the changing rules of ultrasound measurements of calcaneus with age in normal people, and to determine the ultrasound measurement thresholds of spontaneous fractures of the spinal column, and to discuss the practically clinical value of ultrasound measurement technology. Methods:Ultrasound measurements of the right os calcis were made in 410 normal men, 450 normal women, and 145 osteoporotic patients on Lunar Achilles system.Ultrasound measurements of the right os calcis were made in 410 normal men, 450 normal women, and 145 osteoporotic patients on Lunar Achilles system.Results:BUA, SOS, and Stiffness measurements of normal subjects significantly dropped with age increasing, and these measurements sharpply dropped in normal women after preage-old. The thresholds of BUA, SOS, and Stiffness of spontaneous spinal column fractures were (86±10) dB/MHz, (1480±24) m/s, and (53.0±10.2)% in men respectively, and (87±9) dB/MHz, (1470±27) m/s, and (50.0±9.3)% in women respectively. BUA, SOS, and Stiffness measurements of normal subjects significantly dropped with age increasing, and these measurements sharpply dropped in normal women after preage-old. The thresholds of BUA, SOS, and Stiffness of spontaneous spinal column fractures were (86±10) dB/MHz, (1480±24) m/s, and (53.0±10.2)% in men respectively, and (87±9) dB/MHz, (1470±27) m/s, and (50.0±9.3)% in women respectively. Conclusion:Ultrasound measurements of normal men and women are negatively correlated with age. The spontaneous spinal column fractures tend to happen when BUA, SOS, and Stiffness lower or near the thresholds of these measurements. There is wildly practically clinical value by ultrasound measurement technology. Ultrasound measurements of normal men and women are negatively correlated with age. The spontaneous spinal column fractures tend to happen when BUA, SOS, and Stiffness lower or near the thresholds of these measurements. There is wildly practically clinical value by ultrasound measurement technology.更多还原