椎弓根钉结合椎间融合器治疗腰椎滑脱疗效分析(2)
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3.4 术中出血问题
在我们的手术操作中,发现在去除椎板探查相应节段的神经根时易致术中出血,并且出血量较大,很容易失去手术视野,此时必须由助手快速吸引保持术野清晰,运用双极电凝止血,如果止血效果欠佳可以用明胶海绵及脑棉填塞压迫止血,从而便于手术的操作。我们初步分析术中出血较大的原因考虑为:椎体滑脱后牵拉相应节段的椎管内静脉丛,可以致静脉丛紧张度增加,在术中更加易于破损出血。
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(收稿日期:2009-12-07)
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