Quantitative analysis of misplaced pedicle screws in the thoracic spine: how much pullout strength is lost?

量化分析错误置入的胸椎弓根钉: 会失去多少把持力?

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The close packed position of the joints in the thoracic spine is extension.

胸椎椎间小关节的实性闭合结构位置在胸椎延伸(即整个胸椎小关节均为类似结构和位置).

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