Abstract
The aim of this study is to identify a surgical safe zone in base of tongue surgery. Fifteen Fresh frozen cadavers (30 head and neck regions) were included in the anatomical study. Twenty-two CT-angiogram (CTA) scans of neck were included in the radiological study. Surgical safe zone for base of tongue surgery was studied in cadavers and correlated the same in CTA. Depth of the lingual artery (LA) from the tongue surface and distance of origin of lingual artery from tip of greater cornu of hyoid bone was significantly different when comparing anatomical to radiological study (p < 0.005). On protruded position of tongue, lingual artery appeared more close to the tongue surface and was never encountered posterior to foramen caecum. Preoperative CTA evaluation would over-estimate the depth of LA putting the lingual artery at risk during resection. A surgical safe zone exists posterior to foramen caecum and towards the midline.
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SN: substantial contributions to the conception or design of the work, revising it critically for important intellectual content, analysis and interpretation of data for the work and drafting the work and final approval of the version to be published. AI, SK: substantial contributions to the acquisition of data for the work, revising it critically for important intellectual content and final approval of the version to be published. ARP: substantial contributions to the acquisition of radiological data for the work. JGA, ASS: substantial contributions to the acquisition of data for the work.
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Dr. Ameena Ibrahim, Dr. Swetha Kumar, Dr. Aruna R Patil, Dr. J. G. Aishwarya, Dr. Ashish S. Shah and Dr Satish Nair declare that they have no conflict of interest/competing interests.
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All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000. Informed consent was obtained from all patients for being included in the study.
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Ibrahim, A., Kumar, S., Patil, A.R. et al. Radiological and cadaveric study of anatomical safe zone for transoral base of tongue surgery. J Robotic Surg 15, 711–716 (2021). https://doi.org/10.1007/s11701-020-01164-6
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DOI: https://doi.org/10.1007/s11701-020-01164-6