Methods Orbitozygomatic-cavernous sinus approach was simulated on 10 cadaveric heads, and the exposure of superior segment of basilar artery observed.

• 方法在10例标本上模拟经眶颧-海绵窦入路,观察磨除前、后床突后对基底动脉上段的显露情况。结果磨除前床突后形成的间隙为床突间隙;