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Radial nerve compression at the elbow is rare and has variable clinical presentations. Compression of the deep motor branch at the arcade of Frohse constitutes a rare syndrome and could have diverse etiologies. It leads to paralysis of finger and wrist extensors. We report the case of a 20 years old male who consulted for weakness in the extensor muscles of the right hand that had been evolving slowly over 8 years without sensory involvement. On electromyogram, compression of the radial nerve at the radial tunnel was suspected and the exact location was determined with echography to be at the arcade of Frohse. The patient was then operated upon and the recovery of motor functions post-op was satisfactory.

La compression du nerf radial au niveau du coude est peu fréquente et son expression clinique est variable.  L’atteinte de la branche profonde motrice au niveau de l’arcade de Frohse est un syndrome rare et les étiologies sont diverses. Elle est responsable de la paralysie des extenseurs des doigts et du carpe. Nous rapportons le cas d’un patient de 20 ans venu consulter pour faiblesse des extenseurs de la main droite évoluant depuis huit ans sans atteinte sensitive. L’électromyogramme a suspecté une compression au niveau de la gouttière radiale et l’échographie a précisé le site de compression au niveau de l’arcade de Frohse. Le patient a été opéré et la récupération motrice était satisfaisante.


radial nerve compression arcade of Frohse syndrom

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How to Cite
Figuim, B., Roland, N. N., Victor, S., Mbede, M., & Djientcheu, V. (2021). Posterior Interosseous Nerve Syndrome: Diagnosis and Surgical Management. A Case Report. HEALTH SCIENCES AND DISEASE, 22(6). Retrieved from


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