通过图表分析是否螺钉位置不良导致术后并发症。
Charts were examined to determine if any adverse sequelae had resulted from malpositioned screws.
位置不良胸椎椎弓根螺钉拔出力量化研究：究竟损失了多少？
Quantitative analysis of misplaced pedicle screws in the thoracic spine: how much pullout strength is lost?
目的评价带种植体自体骨移植纠正种植体三维位置不良的临床效果。
Objective To investigate the clinical use of segmental osteometomy in reposition of the implant to a more favorable orofacial position.
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