Turkish journal of medical sciences · 2014
Distribution of the hypoglossal nerve at the base of the tongue and its clinical importance in radiofrequency ablation therapy.
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Çandir Nesrin, Develi Sedat, Kilir Cenk, Satar Biilent, Yazar Fatih
Аннотация
AIM: To identify the course of the hypoglossal nerve at the base of tongue and to determine a safe area for the placement ofradiofrequency ablation therapy (RAT) probes to protect the nerve trunk from any damage.
MATERIALS AND METHODS: Anatomical structures located at the base of the tongue were investigated in 10 cadaveric human half-heads. On the base of our landmarks, which are clinically important sign points, measurements were made.
RESULTS: The safe area was found to be: in the transverse plane, the 1/2 medial part of the half-tongue between the lateral edge and the foramen caecum of the tongue, and in the vertical plane, a 14.5-mm depth. Despite the presence of minor branches of the hypoglossal nerve in this area, we think that the trunk of the nerve would be preserved.
CONCLUSION: We suggest that the landmarks that we determined to avoid motor deficit of the tongue will be helpful for clinicians during RAT to the tongue base.
MATERIALS AND METHODS: Anatomical structures located at the base of the tongue were investigated in 10 cadaveric human half-heads. On the base of our landmarks, which are clinically important sign points, measurements were made.
RESULTS: The safe area was found to be: in the transverse plane, the 1/2 medial part of the half-tongue between the lateral edge and the foramen caecum of the tongue, and in the vertical plane, a 14.5-mm depth. Despite the presence of minor branches of the hypoglossal nerve in this area, we think that the trunk of the nerve would be preserved.
CONCLUSION: We suggest that the landmarks that we determined to avoid motor deficit of the tongue will be helpful for clinicians during RAT to the tongue base.