Abstract
Abstract
Background
The medial antebrachial cutaneous nerve is a branch of the brachial plexus that contains C8–T1 segments. Injury of this nerve by various mechanisms has been reported in the literature; however, currently, there is no reported case of medial antebrachial cutaneous nerve injury in the setting of acute blunt trauma.
Case presentation
This case report presents the case of a 34-year-old Persian female with dysesthesia and pain in the medial side of the forearm immediately following a blunt trauma by mechanism of elbow external rotation. On electrodiagnostic evaluation, the medial antebrachial cutaneous nerve sensory nerve action potential of the symptomatic side had a significant amplitude drop (more than 50%), compared with the other side. On follow-up electrodiagnosis, after several sessions of physical therapy, the medial antebrachial cutaneous nerve sensory nerve action potential still had a significant amplitude difference.
Conclusion
Blunt trauma can be one of the causes of medial antebrachial cutaneous nerve involvement. An electrodiagnostic study can be helpful in the diagnosis of this nerve injury after blunt trauma.
Publisher
Springer Science and Business Media LLC
Reference20 articles.
1. Stylianos K, Konstantinos G, Pavlos P, Aliki F. Brachial branches of the medial antebrachial cutaneous nerve: a case report with its clinical significance and a short review of the literature. J Neurosci Rural Pract. 2016;7(03):443–6.
2. Benedikt S, Parvizi D, Feigl G, Koch H. Anatomy of the medial antebrachial cutaneous nerve and its significance in ulnar nerve surgery: an anatomical study. J Plast Reconstr Aesthet Surg. 2017;70(11):1582–8.
3. Polcaro L, Charlick M, Daly DT. Anatomy, head and neck, brachial plexus. StatPearls. 2021.
4. Thomas K, Sajjad H, Bordoni B. Anatomy, shoulder and upper limb, medial brachial cutaneous nerve. StatPearls. 2021.
5. Yildiz N, Ardic F. A rare cause of forearm pain: anterior branch of the medial antebrachial cutaneous nerve injury: a case report. J Brachial Plex Peripher Nerve Inj. 2008;3(1):1–4.