Figure 3.

(A) The angle of attack provided by the pterional approach (θ₁) is notably smaller than that allowed by performing an orbitozygomatic craniotomy. (B) Another view of the zygoma limiting the angle of attack when accessing the superior parts of the skull base (θ₁), although the presence of the zygoma appears less important for visualising the posterio-inferior anatomy (θ₂). (C) Increase in middle fossa exposure provided by the zygomatic osteotomy.