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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Variations in Innervation of Muscles in Anterior Compartment of Arm ? A Cadaveric Study
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Variations in Innervation of Muscles in Anterior Compartment of Arm ? A Cadaveric Study

机译：手臂前房肌肉神经支配的变化？尸体研究

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Aims and Objective: Study was undertaken to observe the variation in the innervation of muscles in the front of arm. The results were compiled. Embryological basis and clinical applications of encountered variations were tried to explain with the help of available literature.Material and Methods: Thirty upper limbs from fifteen cadavers were dissected to observe the contents of front of arm. Musculocutaneous nerve, median nerve and innervation of the muscles of front of arm were observed.Results: Variations were observed in 13% of cases. Commonly seen variation was the absence of musculocutaneous nerve and innervation of muscles of front of arm by branches of median nerve. This variation was seen bilaterally in 3.3% of cases and unilaterally in 6.6% cases. Bilateral presence of this variation in one out of fifteen cadavers is rare finding. Variation is more common on right side as compared to the left side.Conclusion: Bilateral absence of musculocutaneous nerve and innervation of muscles of front of arm from the branches of median nerve is a rare variation. Knowledge of such anatomical variations is of interest to the anatomist and clinician alike. Variations assume significance during surgical exploration of the axilla and can even fail nerve block of infraclavicular part of brachial plexus. Surgeons who perform procedures involving neoplasm or repairing trauma need to be aware of these variations.
机译：目的和目的：进行研究以观察手臂前部肌肉神经支配的变化。结果被汇编。尝试利用现有文献解释所遇到变异的胚胎学基础和临床应用。材料与方法：解剖15只尸体的30只上肢，观察其前臂的内容。结果：观察到13％的患者出现肌皮神经，正中神经和臂前肌神经支配。常见的变化是不存在肌皮神经和手臂正中神经分支支配前臂肌肉。双边出现这种差异的比例为3.3％，单方面则为6.6％。在15具尸体中有1具出现这种变异的情况很少见。结论：两侧双侧无肌皮神经和臂中前神经从中枢神经分支支配是罕见的变异。解剖学家和临床医生都对这种解剖变化的知识感兴趣。变异在腋窝手术探查期间具有重要意义，甚至可能使臂丛神经的锁骨下部分神经阻滞失效。执行涉及肿瘤或修复创伤的手术的外科医生需要意识到这些变化。

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