2023
DOI: 10.1155/2023/5407912
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Computed Tomography Study of the Retrosigmoid Craniotomy Keyhole Approach Using Surface Landmarks

Abstract: Background. Due to a lack of accessibility and individual differences in surgical procedures, many previous studies on keyholes are not practical. Objective. To study the surface landmarks for optimal keyhole placement in the retrosigmoid approach. Methods. The three-dimensional (3D) skull images of 79 patients were reconstructed using workstations, with a total of 149 hemiskull base 3D images then analyzed. Skull-surface landmarks were marked, the lateral-skull surface was observed, and the positional relatio… Show more

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