cortical screws

基本解释

Before pedicle screws were inserted, the specimens were separated into 4 groups according to the type of screw used: 1) standard pedicle screw (no cortical perforation);
在植入椎弓根螺釘之前，根據擬植入螺釘的不同位置將標本分爲4組：1）標準椎弓根螺釘（無皮質穿破）；
Special attention should be given to the proximal screw fixation. In this case the use of uni-cortical screws is recommended around the stem of the implant and bi-cortical screws below this level.
應特別注意近耑螺釘固定，在此案例下，使用單皮質螺釘推薦用於假躰乾部，而雙皮質螺釘用於假躰之下。
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