坏了环枕关节,增加了颈枕的不稳定性,需行手术融合。因此,我们主张在FLA入路处理斜坡中央凹陷区病变时无需过多磨除枕髁,枕髁的磨除程度主要针对下斜坡和枕大孔腹侧空间的显露。
本研究结果表明:颈静脉结节切除是经FLA入路处理斜坡中央凹陷区病变的关键步骤;部分乳突切除增加了经面、听神经和后组脑神经之间显露斜坡中央凹陷区的视角,显著改善了手术操作空间;枕髁和C1侧块的全切除不能显著增加斜坡中央凹陷区的显露和手术操作空间。
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