20.500.12556/DiRROS-18670 Identification of three anatomical patterns of the spinal accessory nerve in the neck by neurophysiological mapping Background. In spite of preservation of the accessory nerve there is still considerable proportion of patients with partial nerve damage during modified radical neck dissection (MRND). Methods. The nerve was identified during the surgery and its branches for the trapezius muscle mapped with nerve monitor. Results. The accessory nerve was mapped during 74 hemineck dissections and three patterns were identified. In type 1 nerve exits at the posterior end of the sternocleidomastoid muscle (SCm) and then it enters the level V (66 %). In type 2 the nerve for trapezius muscle branches off before entering the SCm (22 %). In type 3 the nerve exits at the posterior part of the SCm and it joins to the cervical plexus (12 %). The nerve than exits this junction more medially as a single trapezius branch. Conclusions. The description of three anatomical patterns in level II and V could help preserving the trapezius branch during MRND. spinal accessory nerve nerve mapping neck dissection anatomy shoulder disability true false true Association of Radiology and Oncology Ljubljana Angleški jezik Slovenski jezik by Authors Neznano 2024-04-11 13:45:12 2024-04-11 13:45:13 2024-04-12 03:37:21 0000-00-00 00:00:00 2014 0 0 str. 387-392, V no. 4 Vol. 48 Dec. 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2014-12-01 611.93-089 1318-2099 10.2478/raon-2013-0069 5080127 http://ojs.szd.si/index.php/ro/article/view/1991/1695 1 300677a8-f7e8-11ee-ae20-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25505 RAZ_Lanisnik_Bostjan_2014.pdf RAZ_Lanisnik_Bostjan_2014.pdf 1 B9447D215F91A4F0AB042A03FB260DAE 37792d901fa53e05eced55fa761a713ad3db821f96b7cb308de8c5690888e182 7643d9d2-f7e8-11ee-ae20-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25506 Onkološki inštitut Ljubljana 0 0 0