Malone Christina A, Sauer Norman J, Fenton Todd W
USACIL, Digital Evidence, 4930 North 31st Street, Building 925, Forest Park, GA 30297, USA.
J Forensic Sci. 2011 Sep;56(5):1123-30. doi: 10.1111/j.1556-4029.2011.01820.x. Epub 2011 Jun 3.
Past studies and pediatric bone physiology indicate that younger individuals may heal at a faster rate. Additionally, in adults upper limb fractures heal faster than lower limb fractures; this trend is expected for pediatric fractures. This study aims to evaluate and compare rates of fracture repair in children based on age and skeletal element. Six stages are used to describe the bone repair process in 294 radiographs of tibial and radial fractures from 107 infants and young children. Healing rates are examined using ANOVA and Welch's t-test with a 95% confidence interval. Results indicate that younger individuals spend less time at stage 1, suggesting a delay in the start of healing. Furthermore, forearm fractures heal faster than leg fractures at stages 2 and 3, suggesting a role in the osseous reaction of bone healing. The healing schedule presented may allow the timing of injuries to be estimated from radiographs.
过去的研究和儿童骨骼生理学表明，较年轻的个体可能愈合速度更快。此外，在成年人中，上肢骨折的愈合速度比下肢骨折快；预计儿童骨折也会有这种趋势。本研究旨在评估和比较儿童基于年龄和骨骼部位的骨折修复率。使用六个阶段来描述107名婴幼儿胫骨和桡骨骨折的294张X光片中的骨修复过程。使用方差分析和韦尔奇t检验在95%置信区间内检查愈合率。结果表明，较年轻的个体在第1阶段花费的时间较少，这表明愈合开始存在延迟。此外，在前臂骨折的第2和第3阶段，其愈合速度比腿部骨折快，这表明在骨愈合的骨反应中起作用。所呈现的愈合时间表可能有助于根据X光片估计受伤时间。
