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KMID : 1037420060010010005
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Journal of Korean Skull Base Society
2006 Volume.1 No. 1 p.5 ~ p.10
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Relationships of the Superficial Surgical Landmarks to the Deep Internal Structures of the Temporal -fiber dissection study-
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Choi Chan-Young
Han Seong-Rok
Yoon Sang-Won
Lee Gi-Taek
Whang Choong-Jin
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Abstract
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This study was designed to examine the relationships of deep internal structures to the superficial surgical landmarks important to temporal lobe surgery using fiber dissections. The frontotemporal region was dissected by applying Klingler’s fiber dissection technique to one0 formalin-fixed human cerebral hemispheres. The dissections were performed under a microscope and imaged in the photographs. Several useful measurements to be needed in the temporal lobe surgery were also quantified. Several white matter fiber tracts in the frontotemporal region were constructed in an intricate pattern, just like a network. Most of the specimens, the anterior edge of the optic radiation reached almost the tip of the temporal horn and was located an average of 31.4mm (range, 28-34mm) behind the temporal pole and an average 12.2mm (range, 10-16mm) behind the limen insulae. The relationships of the superficial surgical landmarks (limen insulae, temporal pole, inferior circular sulcus) to the deep internal structures of the temporal lobe (esp. optic radiation) are discussed in this paper. Applying the anatomical knowledge from this study to the surgical plan will contribute to more precise surgery for the various pathological conditions in the frontotemporal region.
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KEYWORD
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Temporal Lobe, Microsurgery, Dissection
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