... 椎体压缩骨折thoracic vertebral compression fracture； 单侧unilateral； 椎弓根外extrapedicular ...
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经椎弓根外固定器可灵活调整器械结构，使病椎后柱加压固定效果更为直接。
With the transpedicular external fixation, it is possible to provide a direct effect in posterior column because external fixation apparatus can be easily performed.
本文对13例胸腰椎骨折经椎弓根外固定治疗术后的50枚螺钉进行位置分析。
Postoperative ct examination of 13 patients with fractures of the thoracolumbar and lumbar spine were analyzed for the location of 50 screws of the transpedicular external fixation.
应用数字技术探讨中下预推椎弓根在头尾偏角不变而不同外偏角方向通道投影的变化规律。
To investigate the regularity changing of inferior cervical pedicle channel in different angles of transverse plane direction.
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