Olerud C
Arch Orthop Trauma Surg (1978). 1985;104(2):129-31. doi: 10.1007/BF00454254.
Two cases of supination-eversion grade II ankle fractures are presented. Both fractures were sustained during downhill skiing and both patients were wearing competition ski-boots with all buckles closed. The trauma mechanism is discussed. The only force that can act upon an ankle inside a ski-boot is a torsion of the calf on the foot. It is, therefore, interesting that the supination-eversion-type fracture can be reproduced with this violence. By considering the ankle and the subtalus joints as a torsion transmitter it can be shown that a supination leads to similar forces between the talus and the mortise as does an outward rotation of the foot. This explains why the two different trauma mechanisms lead to the same injury.
本文介绍了两例旋后-外旋II度踝关节骨折病例。两例骨折均发生在下坡滑雪过程中，且两名患者均穿着扣好所有搭扣的竞赛滑雪靴。文中讨论了创伤机制。滑雪靴内作用于踝关节的唯一力量是小腿对足部的扭转力。因此，有意思的是，这种暴力可导致旋后-外旋型骨折。通过将踝关节和距下关节视为扭转传递器，可以发现旋后与足部向外旋转一样，会在距骨和关节窝之间产生相似的力。这就解释了为什么两种不同的创伤机制会导致相同的损伤。
