Hodsman Anthony B, Leslie William D, Tsang James F, Gamble Greg D
Osteoporosis Program, Department of Medicine, University of Western Ontario, London, Ontario, Canada.
Arch Intern Med. 2008 Nov 10;168(20):2261-7. doi: 10.1001/archinte.168.20.2261.
BACKGROUND: Wrist fractures are the most prevalent type of fracture occurring in postmenopausal women. We sought to contrast the probability of recurrent osteoporotic fractures after a primary wrist fracture with other important primary fracture sites. METHODS: A historical cohort study comprising 21,432 women 45 years or older referred for bone mineral density (BMD) testing. Longitudinal health service records were assessed for the presence of fracture codes before and after BMD testing (359,737 person-years of observation). RESULTS: A total of 2652 women (12.4%) experienced a primary fracture (wrist, vertebra, humerus, hip) prior to BMD testing, of which wrist fractures were the largest single group (1225 [46.2%]). The adjusted hazard ratio (HR) for recurrent osteoporotic fracture following a primary wrist fracture (HR, 1.58; 95% confidence interval [CI], 1.29-1.93) was lower than for other primary fractures (HR, 2.66; 95% CI, 2.30-3.08). Primary wrist fractures were not significantly associated with subsequent hip fractures (adjusted HR, 1.29; 95% CI, 0.88-1.89), whereas other primary fracture sites were individually and collectively significant predictors of future hip fractures (HR, 1.72; 95% CI, 1.31-2.26). The 10-year probability of any recurrent fracture after a primary wrist fracture was 14.2% (95% CI, 11.9%-16.5%), which was significantly less than for other primary fractures (spine, 25.7%; hip, 24.9%; humerus, 23.7%; P < .001 for all comparisons vs wrist) but greater than in those without prior fractures (10.8%; P < .001). The relationship between BMD and fracture risk was much stronger after a primary wrist fracture (HR, 2.20 per standard deviation; 95% CI, 1.70-2.80) than after other primary osteoporotic fractures (HR, 1.21; 95% CI, 1.05-1.40), reflecting the dominance of the other fracture information over BMD. CONCLUSIONS: Wrist fractures are the most common of the clinical osteoporotic fractures in patients referred for BMD testing. However, the risk of recurrent fractures in the 10 years following a wrist fracture is substantially lower than that following other osteoporotic fractures, although it remains significantly higher than for those who have yet to experience a fracture.
背景:腕部骨折是绝经后女性中最常见的骨折类型。我们试图对比初次腕部骨折后再次发生骨质疏松性骨折的概率与其他重要的初次骨折部位。 方法:一项历史性队列研究,纳入了21432名45岁及以上因骨密度(BMD)检测而就诊的女性。通过纵向健康服务记录评估BMD检测前后骨折编码的存在情况(359737人年的观察期)。 结果:共有2652名女性(12.4%)在BMD检测前经历了初次骨折(腕部、椎体、肱骨、髋部),其中腕部骨折是最大的单一组(1225例[46.2%])。初次腕部骨折后再次发生骨质疏松性骨折的调整后风险比(HR)为1.58(95%置信区间[CI],1.29 - 1.93),低于其他初次骨折(HR,2.66;95% CI,2.30 - 3.08)。初次腕部骨折与随后的髋部骨折无显著相关性(调整后HR,1.29;95% CI,0.88 - 1.89),而其他初次骨折部位单独及总体上都是未来髋部骨折的显著预测因素(HR,1.72;95% CI,1.31 - 2.26)。初次腕部骨折后任何再次骨折的10年概率为14.2%(95% CI,11.9% - 16.5%),显著低于其他初次骨折(脊柱,25.7%;髋部,24.9%;肱骨,23.7%;与腕部相比,所有比较的P < 0.001),但高于未发生过骨折的人群(10.8%;P < 0.001)。初次腕部骨折后BMD与骨折风险之间的关系比其他原发性骨质疏松性骨折后更强(HR,每标准差2.20;95% CI,1.70 - 2.80),这反映了其他骨折信息比BMD更具主导性。 结论:在因BMD检测而就诊的患者中,腕部骨折是临床骨质疏松性骨折中最常见的类型。然而,腕部骨折后10年内再次骨折的风险虽仍显著高于未发生过骨折的人群,但远低于其他骨质疏松性骨折后的风险。
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