Abstract
The decision regarding which surgical approach to use during exposure of the posterior fossa requires careful analysis by surgeons. The degree of exposure required is critical in determining the optimum route of attack. The need to visualize the lesion and surrounding eloquent structures adequately so that resection can be undertaken safely must be weighed against the potential complications associated with each type of approach. In the axial plane, the skull-base of the posterior fossa can be exposed through multiple directions broadly classified as posterior or lateral approaches (Fig. 6.1a). In the sagittal plane, the options include supratentorial or infratentorial directions (Fig. 6.1b). In both cases, combinations of these approaches may allow the greatest degree of exposure. This strategy maximizes the potential for safe surgical resection of the pathology in question while limiting potential risks to the patient.
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The authors thank Mark Schornak, Spencer Phippen, Deborah Ravin, and Stephen Harrison for their anatomical drawings.
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Bambakidis, N.C., Glenn, C.A., Safavi-Abbasi, S., Spetzler, R.F. (2022). Combined Surgical Approaches. In: Bambakidis, N.C., Megerian, C.A., Spetzler, R.F. (eds) Surgery of the Cerebellopontine Angle. Springer, Cham. https://doi.org/10.1007/978-3-031-12507-2_6
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