Before definitive cut and transposition of the vessels, the distance to the affected vertebra has to be estimated to certify enough pedicle length.
在最后切断和移植血管之前，一定充分估计距离目的椎体的距离以免血管蒂长度不够。
The technique of free hand insertion with the lateral mass screw of atlas and vertebra dentata pedicle screw is simple, fixation is reliability and is well worth to spreading.
寰椎侧块螺钉与枢椎椎弓根螺钉徒手植入技术简单、可靠，值得推广。
At the same time, injuries to pedicle and vertebra caused by pullout of pedicle screw were observed.
同时观察椎弓根螺钉拔出时椎弓根和椎体损伤情况。
At the same time, injuries to pedicle and vertebra caused by pullout of pedicle screw were observed.
同时观察椎弓根螺钉拔出时椎弓根和椎体损伤情况。
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