Marsh Andrew, Adin Christopher
Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH 43210, USA.
Vet Surg. 2013 Apr;42(3):238-42. doi: 10.1111/j.1532-950X.2013.12000.x. Epub 2013 Mar 4.
To document the extent of rostral salivary duct and glandular tissue excision achieved through a conventional lateral approach before and after tunneling under the digastricus muscle.
Experimental cadaveric study.
Dog cadavers (n = 8).
Bilateral mandibular and sublingual sialoadenectomy was performed in 8 cadavers using a conventional lateral approach and the point of proposed salivary duct transection was marked with Evans blue dye. Remaining salivary duct was then tunneled under the digastricus muscle and dissection continued rostrally. The most rostral point of the gland/duct complex was marked before transection of the salivary duct. Once removed, the distance between the 2 marks was measured and recorded. Completeness of glandular tissue excision was confirmed by dissection and gross examination.
The tunneling technique improved rostral exposure and increased the median (IQR) length of salivary duct excision by 1.8 (0.35) cm. Residual polystomatic sublingual salivary tissue remained in all cadavers after simulated resection without tunneling under the digastricus muscle. After tunneling, complete removal of rostral salivary tissue was achieved in 13 of 15 procedures.
Tunneling under the digastricus muscle increases the length of rostral salivary duct and glandular tissue that can be removed through a conventional lateral approach.
记录在二腹肌下进行隧道操作前后，通过传统外侧入路实现的涎腺导管和腺组织切除范围。
实验性尸体研究。
犬尸体（n = 8）。
对8具尸体采用传统外侧入路进行双侧下颌下和舌下腺切除术，并用伊文思蓝染料标记拟切断涎腺导管的位置。然后将剩余的涎腺导管在二腹肌下进行隧道操作，并继续向头侧进行解剖。在切断涎腺导管之前，标记腺体/导管复合体的最头侧点。切除后，测量并记录两个标记之间的距离。通过解剖和大体检查确认腺组织切除的完整性。
隧道技术改善了头侧暴露，并使涎腺导管切除的中位数（IQR）长度增加了1.8（0.35）cm。在未在二腹肌下进行隧道操作的模拟切除后，所有尸体均残留多腺泡舌下涎腺组织。进行隧道操作后，15例手术中有13例实现了头侧涎腺组织的完全切除。
在二腹肌下进行隧道操作可增加通过传统外侧入路能够切除的头侧涎腺导管和腺组织的长度。
