Prague Med. Rep. 2025, 126, 171-174
https://doi.org/10.14712/23362936.2025.28
Dual Roots of Origin of Inferior Alveolar Nerve and “Vagal Ansa” Cervicalis: Surgical and Anaesthetic Implications
Dibakar Borthakur
, Arthi Ganapathy, Kamalesh Saravanan, Jayanta Biswas, Saroj Kaler Jhajhria
, Arthi Ganapathy, Kamalesh Saravanan, Jayanta Biswas, Saroj Kaler Jhajhria
Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
Received January 21, 2025
Accepted August 27, 2025
References
1. , A., Peker, T., Turgut, H. B., Gulekon, I. N., Liman, F. (2003) Variations in the anatomy of the inferior alveolar nerve. Br. J. Oral Maxillofac. Surg. 41(4), 236–239.
<https://doi.org/10.1016/S0266-4356(03)00113-X>
2. , C. V., Kestle, J. R. W., Connolly, M. B. (2015) The “vagal ansa”: A source of complication in vagus nerve stimulation. J. Neurosurg. Pediatr. 15(5), 535–538.
<https://doi.org/10.3171/2014.10.PEDS14259>
3. , L. (2013) Some unusual types of formation of the ansa cervicalis in humans and proposal of a new morphological classification. Clin. Anat. 26(8), 961–965.
<https://doi.org/10.1002/ca.22265>
4. , S., Iwanaga, J., Kusukawa, J., Tubbs, R. S. (2019) An unusual superior root of the ansa cervicalis. Cureus 11(4), 10–12.
5. , U., Vadgaonkar, R., Pai, M. M., Murlimanju, B. V. (2020) A case of inferior alveolar nerve encircling the arteria maxillaris. Anat. Cell Biol. 53(2), 240–243.
<https://doi.org/10.5115/acb.19.194>
6. , P., Partab, P., Lazarus, L., Satyapal, K. S. (2012) The ansa cervicalis in fetuses. Int. J. Morphol. 30(4), 1321–1326.
<https://doi.org/10.4067/S0717-95022012000400011>
7. , T. S., Sarkar, A. K., Panicker, H. K. (2002) Variation in the origin of the inferior alveolar nerve. Clin. Anat. 15(2), 143–147.
<https://doi.org/10.1002/ca.1110>
8. , A. I., Oganesyan, M. V., Hammer, C. M., Paulsen, F., Bakhmet, A. A. (2019) Ansa cervicalis – A new classification approach. Ann. Anat. 222, 55–60.
<https://doi.org/10.1016/j.aanat.2018.10.010>
9. , J. W. H. (2019) Report of a non-looped variant of ansa cervicalis with omohyoid innervation from accessory nerve branch and omohyoid attachment to mastoid process. Eur. Arch. Otorhinolaryngol. 276, 2105–2108.
<https://doi.org/10.1007/s00405-019-05436-2>
10. , K. T., Brokaw, E. J., Bell, A., Joy, A. (2016) Variant inferior alveolar nerves and implications for local anesthesia. Anesth. Prog. 63(2), 84–90.
<https://doi.org/10.2344/0003-3006-63.2.84>
11. , U., Damiano, G., Marengo, R. L., Socolovsky, M. (2024) Laryngeal reinnervation in recurrent laryngeal neuropathy with ansa cervicalis – RLN end-to-end neurorrhaphy. Neurol. India 72(4), 725–727.
<https://doi.org/10.4103/neurol-india.Neurol-India-D-24-00177>
12. , S., Liu, L., Yang, Y., Mo, H., Wei, L., Xu, D., Yang, Y., Luo, R., Hu, J., Fang, H. (2024) A meta-analysis on the improvement of vocal function in unilateral vocal cord paralysis by reinnervation of the recurrent laryngeal nerve. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 38(10), 928–934. (in Chinese)
