后抽屉试验后方不稳定较术前平均恢复1.1度。
The posterior drawer test (PDT) posterior instability of the knee improved to 1.10 after operation.
结果：28例术中抽屉试验均为阳性，与探查结果完全符合。
Results: Drawer test of 28 cases were positive, which fitted exploration result completely.
结论前抽屉试验应力位片对于慢性外踝关节不稳诊断具有重要意义。
Conclusion Anterior drawer stress radiograph has significant meaning to the diagnosis of chronic ankle instability.
结论前抽屉试验侧位片及内翻应力正位片对于慢性外踝不稳诊断具有重要意义。
Conclusion Both basic roentgenographic measurements have significant meanings to the diagnosis of chronic ankle instability.
目的探讨前抽屉试验应力位片在慢性外踝关节不稳定诊断中的意义，提出影像学的定量诊断方法。
Objective To discuss the significance of anterior drawer stress radiograph in diagnosing of chronic instability of lateral ankle and bring forward the radiology diagnosis criteria.
抽屉单元装有可靠的机械联锁装置，只有在分断开关的状态下才能被打开，同时抽屉具有明显的合闸、试验、分断位置显示。
There is mechanical interlock for the drawer units, they can be opened only if the switch is at break-off state. The drawers have apparent position indication for close~ test and off.
抽屉单元装有可靠的机械联锁装置，只有在分断开关的状态下才能被打开，同时抽屉具有明显的合闸、试验、分断位置显示。
There is mechanical interlock for the drawer units, they can be opened only if the switch is at break-off state. The drawers have apparent position indication for close~ test and off.
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