Anatomical and clinical aspects of the posterior interosseous nerve
of the forearm

Tomasz Lepich; Radosław Karaś; Kamil Kania; Joanna Machnik-Broncel; Konrad Barszczewski; Wojciech Szewczyk; Grzegorz Bajor

doi:10.5114/ms.2024.137602

eISSN: 2300-6722
ISSN: 1899-1874

Medical Studies/Studia Medyczne

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1/2024
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abstract:

Review paper

Anatomical and clinical aspects of the posterior interosseous nerve of the forearm

Tomasz Lepich

¹

,

Radosław Karaś

¹

,

Kamil Kania

¹

,

Joanna Machnik-Broncel

²

,

Konrad Barszczewski

¹

,

Wojciech Szewczyk

³

,

Grzegorz Bajor

^{1, 4}

Department of Anatomy, Faculty of Medical Sciences, Medical University of Silesia, Katowice, Poland
Department of Radiology and Nuclear Medicine, Faculty of Medical Sciences, Medical University of Silesia, Katowice, Poland
Helimed Diagnostic Imaging, Żory, Poland
Department of Anatomy, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic

Medical Studies/Studia Medyczne 2024; 40 (1): 61–68

DOI: https://doi.org/10.5114/ms.2024.137602

Online publish date: 2024/03/28

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The radial nerve arises from the brachial plexus posterior cord from roots C5-Th1. It divides into two terminal branches: superficial and deep. The superficial branch is mostly sensory. From the deep branch arises the posterior interosseous nerve of the forearm. The deep branch of the radial nerve passes through the arcade of Frohse. The arcade of Frohse begins in the apex of the lateral epicondyle of the humerus and is attached to its medial part. It is the highest, proximal part of the supinator muscle, which may have a tendinous or membranous structure. Significant topographic points that are useful in describing the posterior interosseous nerve of the forearm are the radial channel and arcade of Frohse. There exists the anatomical variation of the distal part of the posterior interosseous nerve of the forearm. It is called the Froment-Rauber nerve. Posterior interosseous nerve of forearm dysfunction leads to radial nerve syndrome. There are two different syndromes which are associated with posterior interosseous nerve of forearm dysfunction: radial tunnel syndrome and posterior interosseous nerve syndrome. These syndromes are distinguished on the basis of characteristic symptoms.

keywords:

Anatomical and clinical aspects of the posterior interosseous nerve of the forearm

Tomasz Lepich 1 , Radosław Karaś 1 , Kamil Kania 1 , Joanna Machnik-Broncel 2 , Konrad Barszczewski 1 , Wojciech Szewczyk 3 , Grzegorz Bajor 1, 4

posterior interosseous nerve, Froment-Rauber nerve, arcade of Frohse

Tomasz Lepich

¹

,

Radosław Karaś

¹

,

Kamil Kania

¹

,

Joanna Machnik-Broncel

²

,

Konrad Barszczewski

¹

,

Wojciech Szewczyk

³

,

Grzegorz Bajor

^{1, 4}