Annals of Rehabilitation Medicine

"Lateral antebrachial cutaneous nerve"

Original Articles

Ultrasonographic Study of the Anatomical Relationship Between the Lateral Antebrachial Cutaneous Nerve and the Cephalic Vein: Hyung Soon Im, Jin Young Im, Ki Hoon Kim, Dong Hwee Kim, Byung Kyu Park; Ann Rehabil Med 2017;41(3):421-425. Published online June 29, 2017; DOI: https://doi.org/10.5535/arm.2017.41.3.421

Abstract
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Objective

To define the anatomy of the lateral antebrachial cutaneous nerve (LABCN) and the cephalic vein (CV) in the anterior forearm region of living humans using ultrasonography for preventing LABCN injury during cephalic venipuncture.

Methods

Thirty forearms of 15 healthy volunteers were evaluated using ultrasonography to identify the point where the LABCN begins to contact with the CV, and the point where the LABCN separates from the CV. The LABCN pathway in the forearm in relation to a nerve conduction study was also evaluated.

Results

The LABCNs came in contact with the CV at a mean of 0.6±1.6 cm distal to the elbow crease, and separated from the CV at a mean of 7.0±3.4 cm distal to the elbow crease. The mean distance between the conventionally used recording points (point R) for the LABCN conduction study and the actual sonographic measured LABCN was 2.4±2.4 mm. LABCN usually presented laterally at the point R (83.3%).

Conclusion

The LABCN had close proximity to the CV in the proximal first quarter of the forearm. Cephalic venipuncture in this area should be avoided, and performed with caution if needed.

Citations

Citations to this article as recorded by

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Anatomical Considerations of Lateral and Medial Antebrachial Cutaneous Nerves.: Sin, Joo Yong , Kim, Dong Hwee , Bun, Hye Ryoung , Hwang, Mi Ryoung , Kang, Yoon Kyoo , Kwon, Hee Kyu , Lee, Hang Jae; J Korean Acad Rehabil Med 2007;31(3):329-332.

Abstract
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Objective
To evaluate the anatomic course of the lateral antebrachial cutaneous nerve (LABCN) and medial antebrachial cutaneous nerve (MABCN) in the forearm. Method: We dissected 29 upper extremities of 16 cadavers for LABCN and 20 upper extremities of 15 cadavers for the MABCN. We measured the distance (BT_L) between the biceps tendon (BT) and LABCN on the intercondylar line. The BT is the point at which biceps tendon crosses intercondylar line. The distance (L12) between LABCN and the point of 12 cm distal to BT on the line between BT and radial artery at wrist was measured. The distance (ME_M) between MABCN and medial epicondyle on the intercondylar line was measured. M8 and M10 are the distances between MABCN and the points 8 cm and 10 cm distal to BT on the line from BT to mid-point of flexor carpi radialis and palmaris longus at the wrist respectively. Results: BT_L and L12 were 1.4±3.7 mm and 4.4±3.7 mm respectively. ME_M, M8 and M10 were 28.6±6.9 mm, 18.9±8.9 mm and 18.3±8.2 mm respectively. The thickness of LABCN and MABCN was 19.1±4.9 mm and 13.2±4.2 mm respectively. Conclusion: The LABCN was emerge just lateral to biceps tendon at the elbow and ran down to radial artery. The anatomic course of MABCN was variable at the elbow and forearm. (J Korean Acad Rehab Med 2007; 31: 329-332)