Results The vertebral distracting torsion increased smoothly at first and dramatically increased when intervertebral space was entirely distracted.
结果撑开扭力随着撑开的高度先平稳增加，完全撑开后急剧增加。
Results The vertebral distracting torsion increased smoothly at first and dramatically increased when intervertebral space was entirely distracted.
结果撑开扭力随着撑开的高度先平稳增加，完全撑开后急剧增加。
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