[腮腺水刀分离术后面神经的组织形态学 findings。犬类动物研究] （这里findings直接保留英文，因为没有明确合适的中文对应词，具体翻译需结合专业背景确定准确含义）
[Histomorphologic findings in the facial nerve after waterjet dissection of the parotid gland. Animal studies in dogs].
作者信息
Andratschke M, Lörken J, Eggers R, Magritz R, Siegert R, Wollenberg B
机构信息
Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Deutschland.
出版信息
HNO. 2011 Oct;59(10):1055-61. doi: 10.1007/s00106-011-2334-8.
BACKGROUND
The postoperative facial nerve palsy is a complication after parotidectomy which one is afraid of. The waterjet seems to be a surgical technic which allows separating different tissues without destroying important structures like vessels and nerves.
MATERIAL AND METHODS
Totally, 106 nerve preparations, done by the waterjet of 14 beagles, were evaluated. According to a defined procedure during parotidectomy by waterjet different cones and pressure were used. After a period time of 21 days the trunk, the frontal branch and both oral branches of the facial nerve of both sides were dissected. The tissue preparation was done using the standard technic for EM-sections.
RESULTS
There are mainly changes due to the preparation like the reduction of nerve fibers and fibrosis depending which cones and pressure has been used.
CONCLUSION
Therefore neither the size of the jet (120 or 150 μm) nor the operating pressure of 40 to 60 or 80 bar plays an important role for the function of the facial nerve. Damage to the nerve is mainly due to the preparation technic and the application time. Using the 200 μm jet there is regularly facial nerve damage.
背景
术后面神经麻痹是腮腺切除术后令人担忧的一种并发症。水刀似乎是一种手术技术，能够在不破坏血管和神经等重要结构的情况下分离不同组织。
材料与方法
对14只比格犬通过水刀进行的106次神经制备进行了评估。在腮腺切除术中按照既定程序使用水刀时采用了不同的喷头和压力。21天后，解剖双侧面神经的主干、额支和两支颊支。使用用于电子显微镜切片的标准技术进行组织制备。
结果
主要有因制备导致的变化，如神经纤维减少和纤维化，这取决于所使用的喷头和压力。
结论
因此，喷头尺寸（120或150μm）以及40至60或80巴的操作压力对面神经功能均无重要影响。神经损伤主要归因于制备技术和应用时间。使用200μm的喷头时，经常会出现面神经损伤。
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