Journals / Göztepe Tıp Dergisi / 2003 / Cilt: 18 - Sayı: 1

Demonstrate the course of lateral antebrachial cutaneous nerve

Nervus cutaneus antebrachii lateralis'in innervasyon alanı

Pages
28–31
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was thouht that NCAL was also attending to the thumb sensitive innervation.

📌 3 Key Takeaways

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Objective & Hypothesis:This study was performed on 50 formalin fixed cadavers at Ege University Anatomy Department to demonstrate the course of lateral antebrachial cutaneus nerve (NCAL).
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Key Findings & Data:The point that NCAL pierced the fascia was on the vertical line 3±0.51 cm superior to interepicondylar line and 4.5±0.62 cm medial to lateral epicondyl on transvers line.
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Conclusion & Impact:It was thouht that NCAL was also attending to the thumb sensitive innervation.
🔬Design:Research Article
📍Scope:21 samples
⚙️Variables:Domain Parameters

Abstract

This study was performed on 50 formalin fixed cadavers at Ege University Anatomy Department to demonstrate the course of lateral antebrachial cutaneus nerve (NCAL). The point that NCAL pierced the fascia was on the vertical line 3±0.51 cm superior to interepicondylar line and 4.5±0.62 cm medial to lateral epicondyl on transvers line. The tendono of biceps brachii muscle was well-developed than expected in 21 samples at this level. The tendon of biceps muscle was inferior to this level in 29 samples. The terminal branches of NCAL were overlapped on the branches of superficial rami of the radial nerve (RS) in 37 samples of 50. There was a complete overlap between NCAL and RS in 10 samples of 37. There were no anastomoses between these two nerves in 27 of 37 but anterior and posterior rami of NCAL were overlapped on RS going towards proximal to the first metacarp (partial overlap). NCAL was alone in 13 samples and went to the distal forearm. Anterior ramus of NCAL was connected with RS only lying to thenar area, radial side of the thumb and first interosseos area. It was thouht that NCAL was also attending to the thumb sensitive innervation.

Özet

N. cutaneus antebrachii lateralis (NCAL)'in anatomik seyrini tanımlamak amacıyla Ege Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı'nda formalinle fikse edilmiş 50 adet kadavra örneğinde çalışıldı. NCAL'in fascia brachii'yi delip yüzeyelleştiği nokta, interepikondiler çizginin vertikal hat üzerinde ortalama 3±0.51 cm yukarısında, transvers hat üzerinde ise lateral epikondilin ortalama 4.5±0.62 cm medialinde bulundu. Sinirin yüzeyelleştiği bu seviyede, medialinde yer alan m. bi-ceps brachii'nin tendonunun 21 örnekte oldukça belirgin olduğu izlendi. 29 örnekte ise bu seviyede m. biceps'in daha muskuler olduğu, tendonunun daha alt seviyede belirginleştiği görüldü. 50 kadavra örneğinin 37 adedinde NCAL'in terminal dalları RS dalları üzerinde uzanıyordu (overlap). 37 örneğin 10 adedinde RS ile NCAL ön dalı arasında direkt bağlantı vardı (complet overlap). 37 örneğin 27 adedinde bu iki sinir arasında direkt bir bağlantı yoktu, fakat NCAL ön ve arka dalı RS'in üzerinde örtüşerek birinci metakarpal kemiğin proksimaline kadar uzanıyordu (parsiyal overlap). 13 örnekte ise NCAL bağımsız olarak ön kol distaline kadar seyrediyordu. NCAL ön dalının RS'in sadece tenar bölge, baş parmağın radial kenarı ve birinci interosseoz aralıkta uzanan deri dalıyla bağlantı yaptığı izlendi. Bu örneklerde NCAL'in klasik duyu alanına ek olarak başparmak duyusuna da katıldığı düşünülmektedir.

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Cite This Article

ÜÇERLER, H., PINAR, A. Y., İKİZ, A. Z. A., ERDOĞMUŞ, S. (2022). Demonstrate the course of lateral antebrachial cutaneous nerve. Göztepe Tıp Dergisi, Cilt: 18 - Sayı: 1, 28–31. https://ajindex.com/articles/526486

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