Chinese Journal of Clinical Anatomy >
Applied anatomy of the lateral branch of the superior laryngeal nerve in the avascular space
Received date: 2013-11-25
Online published: 2014-12-04
Objective To provide the anatomical basis to protect the lateral branch of the superior laryngeal nerve during the thyroid surgery. Methods 32 Chinese cadavers (64 sides) were dissected to explore anatomic features of the lateral branch of the superior laryngeal nerve (EBSLN ) in the avascular space, and observe the close relationship between the LBSLN and other anatomical structures in this space. Result The superior laryngeal nerve loop was observed on 3 sides. On all sides, the EBSLN provided the cricothyroidal branch. The pharyngeal branch was found on 46 (71.8%) sides. The Friedman classification was used to define variations in EBSLN. Type 1, type 2 and type 3 accounted for 28.1%（18/64）, 54.7%（35/64）and 17.2%（11/64）, respectively. The point EBSLN penetrated the inferior constrictor muscle is located under the sternothyroid muscle. The vertical distance between the point where the nerve penetrated the inferior constrictor and slash was (3.60±0.30) mm. The vertical distance between the point where the nerve penetrated the inferior constrictor and the medial margin of sternothyroid muscle was (8.27±1.72) mm. The distance between the point where the nerve penetrated the inferior constrictor and the midpoint of the lower edge of the cricoid cartilage was (27.09±1.46) mm. Conclusion Most of EBSLNs could be exposed and protected by the surgical approach of the potential avascular space. In more than 17.2% cases, EBSLN may not be found, but it will not be damaged.
WANG Tie-Long , SONG Xiao-Fei , TUN An-Xun , DIAO Yan , DAN Jian , LIU Qing-Hui , LI Shuang-Cheng , DIAO Rui-Li . Applied anatomy of the lateral branch of the superior laryngeal nerve in the avascular space[J]. Chinese Journal of Clinical Anatomy, 2014 , 32(6) : 633 -636 . DOI: 10.13418/j.issn.1001-165x.201
[1] Cernea CR, Ferraz AR, Nishio S, et al. Surgical anatomy of the external branch of the superior laryngeal nerve
[J]. Head Neck，1992, 14(5): 380-383.
[2] 曾志成，杨科球，王淼，等.喉上神经的应用解剖
[J]. 中国临床解剖学杂志,1996,14（1）：38-40.
[3] 石健，王占龙，吴干勋，等.甲状腺手术中两种喉上神经外支寻找方法的比较
[J].临床耳鼻咽喉头颈外科杂志, 2012，26(24）：1140-1141.
[4]Sun SQ, Chang RW. The superior laryngeal nerve loop and its surgical implications
[J]. Surg Radiol Anat,1991, 13(3): 175-180.
[5]孙善全,董剑平.喉上神经袢的应用解剖
[J].中国临床解剖学杂志,1995,13(4)：258-262.
[6]Friedman M, LoSalvio P, Ibrahim H, et al. Superior laryngeal nerve identification and preservation in thyroidectomy
[J]. Arch Otolaryngol Head Neck Surg, 2002, 128(3) : 296-303.
[7]Hisham A，Bliss R，Reeve T，et al．Recognition of the avascular space medial to the upper pole of the thyroid and its surgical implications
[J]．Asian J Surg, 2000, 23(1):86-89.
[8] Bliss RD，Gauger PG，Delbridge LW．Surgeon’s approach to the thyroid gland：surgical anatomy and the importance of tec-hnique
[J]．World J Surg, 2000, 24(8): 891-897.
[9] Aina EN, Hisham AN. External laryngeal nerve in thyroid surgery:Recognition and surgical implications
[J]. ANZ J Surg, 2001, 71(4): 212-214.
[10]Furlan JC. Sympathetic fiber origin of the superior Laryngeal nerve and its branches: an anatomic study
[J]. Clin Anat, 2002, 15(4): 271-275.
[11]黄海霞，王兴路，唐文静，等.喉上神经袢的新亚型及临床应用
[J].解剖学杂志，2012,35(5)：635-638.
[12]盛国生. 喉上神经损伤的预防
[J]. 中国实用外科杂志, 1993, 13(10):603-605.
/
| 〈 |
|
〉 |
