What question did this study set out to answer?

To evaluate and compare surgical working areas and bone removal volumes between transcranial supraorbital and transorbital endo-orbital approaches to the lateral and parasellar middle cranial fossa.

February 22, 2018Operative Neurosurgery

Supraorbital vs Endo-Orbital Routes to the Lateral Skull Base: A Quantitative and Qualitative Anatomic Study

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To evaluate and compare surgical working areas and bone removal volumes between transcranial supraorbital and transorbital endo-orbital approaches to the lateral and parasellar middle cranial fossa.
Conducted staged dissections on 5 cadaveric specimens (10 sides) comparing stage 1 (eyebrow supraorbital approach), stage 2 (superior eyelid endo-orbital approach with sphenoid wing resection), and stage 3 (extended supraorbital re-evaluation).
Quantified operative working areas across Sylvian, anterolateral temporal, and parasellar regions, measuring bone removal volumes and comparing groups via unpaired Student t-test.
Anterolateral temporal and Sylvian region exposures were comparable between the eyelid and transcranial routes despite differing visual trajectories.
The eyelid transorbital approach significantly increased parasellar exposure with a wider angle of attack (P < .01) while achieving comparable bone removal volumes.

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Implication

Cadaveric anatomic study demonstrates greater parasellar exposure via an endo-orbital eyelid route compared to a supraorbital approach in human specimens, suggesting utility for select skull base...

Cite This Study

Somma et al. (2018) studied this question.

synapsesocial.com/papers/6aac8e87a02c4d29947ed9d4 https://doi.org/10.1093/ons/opx256

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Implication

Cadaveric anatomic study demonstrates greater parasellar exposure via an endo-orbital eyelid route compared to a supraorbital approach in human specimens, suggesting utility for select skull base...

Supraorbital vs Endo-Orbital Routes to the Lateral Skull Base: A Quantitative and Qualitative Anatomic Study

Key Points

Discussion

Implication

Cite This Study

Supraorbital vs Endo-Orbital Routes to the Lateral Skull Base: A Quantitative and Qualitative Anatomic Study

Key Points

Discussion

Implication

Cite This Study