骨科英文书籍精读（288）｜儿童股骨干骨折并发症
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Complications
Shortening
Overlapping and comminution of the bone fragments may shorten the femur. However, anything up to 2 cm is quite acceptable in young children; indeed, some surgeons regard this as an advantage because there is a tendency for the fractured bone to grow faster for up to 2 years after the injury.
This may be related to stimulation of the physes derived from the increased blood flow that accompanies fracture healing. Unfortunately, the effect on growth is unpredictable.
Malunion
Angulation can usually be tolerated within the limits mentioned above. However, the fact that bone modelling is excellent in children is no excuse for casual management; bone may be forgiving but parents are not! Certainly rotational malunion is not corrected by growth or remodelling. It is probably wise to observe a malunited fracture for 2 years before offering corrective osteotomy.
---from 《Apley’s System of Orthopaedics and Fractures》
重点词汇整理：
Overlapping /'ovər'læp/v. 重叠；与……重合（overlap 的现在分词）
This may be related to stimulation of the physes derived from the increased blood flow that accompanies fracture healing. 这可能与伴随骨折愈合的血流增加而产生的骨骺刺激有关。
derive /dɪˈraɪv/vt. 源于；得自；获得vi. 起源
百度翻译：
并发症
肢体短缩
骨碎片的重叠和粉碎可能会缩短股骨。然而，任何高达2厘米的东西对年轻的孩子来说都是可以接受的；事实上，一些外科医生认为这是一个优势，因为骨折的骨头在受伤后的2年内有更快生长的趋势。
这可能与刺激伴随骨折愈合的血流量增加而产生的植物人有关。不幸的是，对增长的影响是不可预测的。
畸形愈合
在上述限制范围内，通常可以容忍成角。然而，事实上，骨骼模型是优秀的儿童不是随便管理的借口；骨骼可以原谅，但父母不是！当然，旋转畸形愈合并不是通过生长或重塑来纠正的。在进行矫形截骨术前，观察骨折畸形愈合2年可能是明智的。