Clinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct: An anatomical study on adult Taiwanese cadavers

Chen Hsi Tsai, Chun Chan Ting, Szu Yuan Wu, Jih Yu Chiu, Hansheng Chen, Kazuyo Igawa, Ting Hsun Lan, Chun Ming Chen, Tsuoyoshi Takato, Kazuto Hoshi, Edward Chengchuan Ko

研究成果: Article

摘要

Objective: This observational study on adult Taiwanese cadavers focused mainly on the intersection of buccal branches of the facial nerve with Stensen's duct, using the emergence of Stensen's duct as the reference landmark. Materials and methods: Thirty-five cadaveric hemifaces were included in our research. Samples with facial defects due to tumor, trauma, or surgery were all excluded. Buccal branches of the facial nerve were identified according to the Gray's Anatomy 40th edition definition. The distance was measured from the intersection to the emergence of Stensen's duct, running from the anterior border of the parotid gland. Results: In the 35 hemifaces, the number of buccal branch/Stensen's duct intersections ranged from 1 to 5 (average 2.49 ± 1.15). Two-point intersections accounted for 37% (13 hemifaces) of the sample, forming the largest group. Samples of facial nerve buccal branches were divided into four types: Type 1, with two buccal branches, accounted for 37.15% (13/35); Type 2, with three buccal branches, made up 48.59% (17/35) of our samples — the biggest group (Type 2-a was the most frequent pattern among our samples, with two superior buccal branches and one inferior buccal branch, accounting for 34.31% of our samples); Type 3, with four buccal branches, accounted for only 5.7%. Three cases of double Stensen's duct were classified as Type 4, though this is supposed to be a very rare anatomical variation. With Type 2a, the most frequent pattern among our specimens, the distance from the emergence of the Stensen's duct to the emergence point of the first superior buccal branch along the anterior border of the parotid gland was 9.58 ± 5.68 mm. The distance from the emergence point to the emergence of the inferior buccal branch along the anterior border of the parotid gland was 11.03 ± 5.38 mm. The distance (D1) from Stensen's duct to the emergence of the first superiorly located buccal branch of the group Type 2-a was statistically different from the distance (D1) of the other groups (p = 0.02). No direct anastomoses or communicating fibers between upper and lower buccal branches were noted in 11 hemifaces (31%). Conclusion: The distribution of buccal branches was described using the emergence of Stensen's duct as a reference landmark. According to our observations, the relationship between the buccal branches and Stensen's duct was much more complicated than described in previous studies. This was the first study to investigate the complete distribution of buccal branches of the facial nerve emerging from the anterior of the parotid gland, and their relative locations and branching numbers.

原文English
頁(從 - 到)1809-1818
頁數10
期刊Journal of Cranio-Maxillofacial Surgery
47
發行號11
DOIs
出版狀態Published - 2019 十一月

指紋

Salivary Ducts
Cheek
Facial Nerve
Cadaver
Parotid Gland

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

引用此文

Tsai, Chen Hsi ; Ting, Chun Chan ; Wu, Szu Yuan ; Chiu, Jih Yu ; Chen, Hansheng ; Igawa, Kazuyo ; Lan, Ting Hsun ; Chen, Chun Ming ; Takato, Tsuoyoshi ; Hoshi, Kazuto ; Ko, Edward Chengchuan. / Clinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct : An anatomical study on adult Taiwanese cadavers. 於: Journal of Cranio-Maxillofacial Surgery. 2019 ; 卷 47, 編號 11. 頁 1809-1818.
@article{7c2ff556c08c49b2b59af8e85ef93d9b,
title = "Clinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct: An anatomical study on adult Taiwanese cadavers",
abstract = "Objective: This observational study on adult Taiwanese cadavers focused mainly on the intersection of buccal branches of the facial nerve with Stensen's duct, using the emergence of Stensen's duct as the reference landmark. Materials and methods: Thirty-five cadaveric hemifaces were included in our research. Samples with facial defects due to tumor, trauma, or surgery were all excluded. Buccal branches of the facial nerve were identified according to the Gray's Anatomy 40th edition definition. The distance was measured from the intersection to the emergence of Stensen's duct, running from the anterior border of the parotid gland. Results: In the 35 hemifaces, the number of buccal branch/Stensen's duct intersections ranged from 1 to 5 (average 2.49 ± 1.15). Two-point intersections accounted for 37{\%} (13 hemifaces) of the sample, forming the largest group. Samples of facial nerve buccal branches were divided into four types: Type 1, with two buccal branches, accounted for 37.15{\%} (13/35); Type 2, with three buccal branches, made up 48.59{\%} (17/35) of our samples — the biggest group (Type 2-a was the most frequent pattern among our samples, with two superior buccal branches and one inferior buccal branch, accounting for 34.31{\%} of our samples); Type 3, with four buccal branches, accounted for only 5.7{\%}. Three cases of double Stensen's duct were classified as Type 4, though this is supposed to be a very rare anatomical variation. With Type 2a, the most frequent pattern among our specimens, the distance from the emergence of the Stensen's duct to the emergence point of the first superior buccal branch along the anterior border of the parotid gland was 9.58 ± 5.68 mm. The distance from the emergence point to the emergence of the inferior buccal branch along the anterior border of the parotid gland was 11.03 ± 5.38 mm. The distance (D1) from Stensen's duct to the emergence of the first superiorly located buccal branch of the group Type 2-a was statistically different from the distance (D1) of the other groups (p = 0.02). No direct anastomoses or communicating fibers between upper and lower buccal branches were noted in 11 hemifaces (31{\%}). Conclusion: The distribution of buccal branches was described using the emergence of Stensen's duct as a reference landmark. According to our observations, the relationship between the buccal branches and Stensen's duct was much more complicated than described in previous studies. This was the first study to investigate the complete distribution of buccal branches of the facial nerve emerging from the anterior of the parotid gland, and their relative locations and branching numbers.",
author = "Tsai, {Chen Hsi} and Ting, {Chun Chan} and Wu, {Szu Yuan} and Chiu, {Jih Yu} and Hansheng Chen and Kazuyo Igawa and Lan, {Ting Hsun} and Chen, {Chun Ming} and Tsuoyoshi Takato and Kazuto Hoshi and Ko, {Edward Chengchuan}",
year = "2019",
month = "11",
doi = "10.1016/j.jcms.2018.12.018",
language = "English",
volume = "47",
pages = "1809--1818",
journal = "Journal of Cranio-Maxillo-Facial Surgery",
issn = "1010-5182",
publisher = "Churchill Livingstone",
number = "11",

}

Clinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct : An anatomical study on adult Taiwanese cadavers. / Tsai, Chen Hsi; Ting, Chun Chan; Wu, Szu Yuan; Chiu, Jih Yu; Chen, Hansheng; Igawa, Kazuyo; Lan, Ting Hsun; Chen, Chun Ming; Takato, Tsuoyoshi; Hoshi, Kazuto; Ko, Edward Chengchuan.

於: Journal of Cranio-Maxillofacial Surgery, 卷 47, 編號 11, 11.2019, p. 1809-1818.

研究成果: Article

TY - JOUR

T1 - Clinical significance of buccal branches of the facial nerve and their relationship with the emergence of Stensen's duct

T2 - An anatomical study on adult Taiwanese cadavers

AU - Tsai, Chen Hsi

AU - Ting, Chun Chan

AU - Wu, Szu Yuan

AU - Chiu, Jih Yu

AU - Chen, Hansheng

AU - Igawa, Kazuyo

AU - Lan, Ting Hsun

AU - Chen, Chun Ming

AU - Takato, Tsuoyoshi

AU - Hoshi, Kazuto

AU - Ko, Edward Chengchuan

PY - 2019/11

Y1 - 2019/11

N2 - Objective: This observational study on adult Taiwanese cadavers focused mainly on the intersection of buccal branches of the facial nerve with Stensen's duct, using the emergence of Stensen's duct as the reference landmark. Materials and methods: Thirty-five cadaveric hemifaces were included in our research. Samples with facial defects due to tumor, trauma, or surgery were all excluded. Buccal branches of the facial nerve were identified according to the Gray's Anatomy 40th edition definition. The distance was measured from the intersection to the emergence of Stensen's duct, running from the anterior border of the parotid gland. Results: In the 35 hemifaces, the number of buccal branch/Stensen's duct intersections ranged from 1 to 5 (average 2.49 ± 1.15). Two-point intersections accounted for 37% (13 hemifaces) of the sample, forming the largest group. Samples of facial nerve buccal branches were divided into four types: Type 1, with two buccal branches, accounted for 37.15% (13/35); Type 2, with three buccal branches, made up 48.59% (17/35) of our samples — the biggest group (Type 2-a was the most frequent pattern among our samples, with two superior buccal branches and one inferior buccal branch, accounting for 34.31% of our samples); Type 3, with four buccal branches, accounted for only 5.7%. Three cases of double Stensen's duct were classified as Type 4, though this is supposed to be a very rare anatomical variation. With Type 2a, the most frequent pattern among our specimens, the distance from the emergence of the Stensen's duct to the emergence point of the first superior buccal branch along the anterior border of the parotid gland was 9.58 ± 5.68 mm. The distance from the emergence point to the emergence of the inferior buccal branch along the anterior border of the parotid gland was 11.03 ± 5.38 mm. The distance (D1) from Stensen's duct to the emergence of the first superiorly located buccal branch of the group Type 2-a was statistically different from the distance (D1) of the other groups (p = 0.02). No direct anastomoses or communicating fibers between upper and lower buccal branches were noted in 11 hemifaces (31%). Conclusion: The distribution of buccal branches was described using the emergence of Stensen's duct as a reference landmark. According to our observations, the relationship between the buccal branches and Stensen's duct was much more complicated than described in previous studies. This was the first study to investigate the complete distribution of buccal branches of the facial nerve emerging from the anterior of the parotid gland, and their relative locations and branching numbers.

AB - Objective: This observational study on adult Taiwanese cadavers focused mainly on the intersection of buccal branches of the facial nerve with Stensen's duct, using the emergence of Stensen's duct as the reference landmark. Materials and methods: Thirty-five cadaveric hemifaces were included in our research. Samples with facial defects due to tumor, trauma, or surgery were all excluded. Buccal branches of the facial nerve were identified according to the Gray's Anatomy 40th edition definition. The distance was measured from the intersection to the emergence of Stensen's duct, running from the anterior border of the parotid gland. Results: In the 35 hemifaces, the number of buccal branch/Stensen's duct intersections ranged from 1 to 5 (average 2.49 ± 1.15). Two-point intersections accounted for 37% (13 hemifaces) of the sample, forming the largest group. Samples of facial nerve buccal branches were divided into four types: Type 1, with two buccal branches, accounted for 37.15% (13/35); Type 2, with three buccal branches, made up 48.59% (17/35) of our samples — the biggest group (Type 2-a was the most frequent pattern among our samples, with two superior buccal branches and one inferior buccal branch, accounting for 34.31% of our samples); Type 3, with four buccal branches, accounted for only 5.7%. Three cases of double Stensen's duct were classified as Type 4, though this is supposed to be a very rare anatomical variation. With Type 2a, the most frequent pattern among our specimens, the distance from the emergence of the Stensen's duct to the emergence point of the first superior buccal branch along the anterior border of the parotid gland was 9.58 ± 5.68 mm. The distance from the emergence point to the emergence of the inferior buccal branch along the anterior border of the parotid gland was 11.03 ± 5.38 mm. The distance (D1) from Stensen's duct to the emergence of the first superiorly located buccal branch of the group Type 2-a was statistically different from the distance (D1) of the other groups (p = 0.02). No direct anastomoses or communicating fibers between upper and lower buccal branches were noted in 11 hemifaces (31%). Conclusion: The distribution of buccal branches was described using the emergence of Stensen's duct as a reference landmark. According to our observations, the relationship between the buccal branches and Stensen's duct was much more complicated than described in previous studies. This was the first study to investigate the complete distribution of buccal branches of the facial nerve emerging from the anterior of the parotid gland, and their relative locations and branching numbers.

UR - http://www.scopus.com/inward/record.url?scp=85072222435&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072222435&partnerID=8YFLogxK

U2 - 10.1016/j.jcms.2018.12.018

DO - 10.1016/j.jcms.2018.12.018

M3 - Article

C2 - 31537441

AN - SCOPUS:85072222435

VL - 47

SP - 1809

EP - 1818

JO - Journal of Cranio-Maxillo-Facial Surgery

JF - Journal of Cranio-Maxillo-Facial Surgery

SN - 1010-5182

IS - 11

ER -