Objective To observe the variation of bone mineral density ( BMD ) before and after the treatment in fracture patients. Methods BMD variation in 1 week, 1 month, 3 months, and 6 months after the fracture in 202 male and 96 female fracture patients were measured using digital X-ray Bone Mineral (XBM). Results Compared with BMD of fracture patients in 1 week after fracture, BMD of fracture patients in 1 month after fracture decreased 4. 84% in males and 5. 71 % in females. The result of t-test showed that t value was 6. 134 in males ( P < 0. 001 ) and 4. 734 in female ( P < 0. 001 ) . Compared with BMD of fracture patients in 1 week after fracture, BMD of fracture patients in 3 months after fracture decreased 1.41% in males and 2. 10 % in females. The result of t-test showed that t value was 1. 288 in males ( P > 0. 05 ) and 1.571 in females ( P > 0. 05 ) . Compared with BMD of fracture patients in 1 week after fracture, BMD of fracture patients in 6 months after fracture decreased 0. 26% in males and 0. 60% in females. The result of t-test showed that t value was 0. 009 in males ( P > 0. 05 ) and 0. 288 in females ( P > 0. 05 ) . Conclusion BMD decreases significantly in 1 month after the fracture. BMD decrease in 3 months after the fracture is not significant comparing with the fracture time. BMD in 6 months after fracture recovers to the normal level, and no difference with BMD in the fracture time.%目的 观察骨折病人骨折治疗前后的骨密度变化.方法对202例男性骨折病人和96例女性骨折病人在骨折后1w、1个月、3个月、6个月时进行数字X线骨密度测量(XBM),观察骨密度值的变化.结果 男、女骨折病人骨折后1个月时与骨折时比较,男:降低4.84%;配对t检验:t=6.134,P<0.001;女:降低5.71%;t=4.734,P<0.001;3个月时与骨折时比较,男:降低1.41%;配对t检验:t= 1.288,P>0.05;女:降低2.10%;t=1571,P>0.05;6个月时与骨折时比较,男:降低0.26%;配对t检验:t= 0.009,P>0.05;女:降低0.60%;t=0.288,P>0.05.结论 男、女骨折病人骨折后1个月时有非常显著的骨密度降低,3个月时骨密度有明显恢复,较骨折时已无显著性降低;6个月时基本恢复到接近正常水平,与骨折时比较没有显著性差异.
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