the improved screw-setting technique
the improved screw-setting technique
改进的螺杆固定技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Conclusion: the improved screw-setting technique of the lumber-thoracic pedicle by the preoperative ct scanning is a good method, it can effectively descend the ratio of bad screw.
结论：术前ct扫描椎弓根引导胸腰椎椎弓根螺钉的置入是一个较好的改良方法，能有效降低不良置钉率。
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