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Authors: Kasper Baasch Nielsen, Med. Stud., Anne Mosebo, MD, Julie Tastesen, MD and Magnus Balslev Avnstorp, MD

When performing brachioplasty of the upper arm special attention must be paid to preserve of the following nerves:

The proximal two-thirds of the medial
and posterior part of the upper arm
Medial brachial cutaneous nerve
Posterior brachial cutaneous nerve
The distal one-third of the upper arm Medial antebrachial cutaneous nerve
Basilic vein

All three nerves are sensory nerves innervating the medial and posterior aspect of the arm. Injury of these cutaneous nerves may lead to sensory disturbances of the medial aspect pf the arm, parestesia, and dysesthesia. It is therefore crucial to preserve these cutaneous nerves and leave the brachial fascia intact. The incision, and consequently the scar, should be placed at the posterior-medial of the arm1.

Figure 1 | Sagittal view of the upper arm
Figure 2 | Sagittal view of the upper arm
Figure 3 | Dermatomes of the arm


Illustrators: Anne Mosebo, MD


  1. Egrari S. Brachioplasty: A Personal Approach. Aesthet Surg J. 2016;36(2):193–203. doi:10.1093/asj/sjv146