A Study of Tibial Nerve in the Popliteal Fossa Along With Its Variations in Its Branching Pattern
A Study of Tibial Nerve in the Popliteal Fossa Along With Its Variations in Its Branching Pattern
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腘窝胫神经及其分支模式变化的研究
DOI：
10.21276/aanat.2020.6.2.6
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
L. Livingston
中科院分区：
文献类型：
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作者：
W. Benjamin;Raghavendra V Pisale;S A Premchand;Edward Indla;S. V. Ennazhiyil;Akshara Vr;L. Livingston
背景资料：详细了解这些运动分支模式的变化将有助于外科医生在进行小腿复位手术时以及需要进行选择性神经切除术时。麻醉师也需要给予神经阻滞。对象和方法：40侧福尔马林固定的成人下肢标本。通过解剖研究了胫神经的起源、分支模式的变化、肌支的数量。这些神经的起始平面取至腓骨头尖（AHF）。结果：70%的标本胫神经起点在AHF平面以上< 12 cm，30%的标本胫神经起点在AHF平面以上12-24 cm。腓肠神经起源于腓肠肌内侧头（MHG）的占10%。82.5%的MHG有胫神经的一个分支，17.5%的MHG有两个分支。腓肠肌外侧头（LHG）接受胫神经的一个分支。在10%的病例中，LHG和比目鱼肌有一个共同的分支。90%的标本有一个分支，10%的标本有两个分支供应比目鱼肌。一个单一的分支供应跖肌。腘肌也接受了单个分支。结论：本研究结果可为解剖学、外科、放射学和麻醉学医师提供所需的信息。
Background: A detailed Knowledge of these variations in motor branching patterns will help the surgeons when certain procedures are done for calf reduction and also when selective neurectomy is required. It is also required by the anesthetists to give neurolytic blocks. Subjects and Methods: 40 formalin-fixed lower limbs of adult human cadavers were selected. The origin of the tibial nerve, variations in a branching pattern, number of muscular branches given was studied by dissection. The Level of origin of these nerves was taken to the apex of the head of the fibula (AHF). Results: In 70 % of specimens the origin of the Tibial Nerve was < 12 cm and in 30 % it was between 12-24 cm above the level of AHF. In 10% of cases, the sural nerve originated from the nerve to the medial head of gastrocnemius (MHG). In 82.5% of specimens, the MHG received one branch from the tibial nerve and in 17.5% it received two branches. The lateral head of Gastrocnemius (LHG) received one branch from the tibial nerve. In 10%, there was a common branch for the LHG and the soleus muscle. 90% of specimens had one branch and 10% had two branches that supplied the soleus muscle. A single branch supplied the plantaris muscle. The popliteus muscle also received a single branch. Conclusion : The results in the study provide information that is required by the anatomists, surgeons, radiologists and anesthetists.