The terminal branch of the posterior interosseous nerve: an anatomic and histologic study

Bonczar, Tomasz; Walocha, Jerzy; Bonczar, M; Mizia, Ewa; Koziej, Mateusz; Piekos, Patryk; Kujdowicz, Monika

doi:10.5603/fm.a2020.0041

Cited by 2 publications

(2 citation statements)

References 15 publications

(19 reference statements)

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“…Ten (35.7%) nerves contained a single bundle of nerve fibers, while 18 (64.3%) had at least two bundles of nerve fibers (from two to nine). However, the study found no statistically significant relationship between gender and the size of the nerves and the number of bundles they contained [38].…”

Section: Missankov Et Al Examining Fifty-eight Upper Limbsmentioning

confidence: 59%

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

Lepich,

Karaś,

Kania

et al. 2024

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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. StreszczenieNerw promieniowy pochodzi z pęczka tylnego splotu ramiennego z korzeni C5-Th1. Dzieli się na dwie końcowe gałęzie: powierzchowną i głęboką. Powierzchowna gałąź jest głównie czuciowa. Z gałęzi głębokiej odchodzi nerw międzykostny tylny przedramienia. Gałąź głęboka nerwu promieniowego przechodzi przez tzw. arkadę Frohsa. Rozpoczyna się w części szczytowej nadkłykcia bocznego kości ramiennej i rozciąga się, przyczepiając się do jego przyśrodkowej części. Jest to najwyższa, proksymalna część mięśnia odwracacza, która może mieć charakter ścięgnisty lub błoniasty. Istotnymi punktami topograficznymi przydatnymi w opisie nerwu międzykostnego tylnego przedramienia są kanał promieniowy i arkada Frohsa. Istnieje zmienność anatomiczna dystalnej części nerwu międzykostnego tylnego przedramienia. Jest to tak zwany nerw Fromenta-Raubera. Dysfunkcja nerwu międzykostnego tylnego przedramienia prowadzi do zespołu nerwu promieniowego. Istnieją dwa różne zespoły związane z dysfunkcją nerwu międzykostnego tylnego przedramienia: zespół kanału promieniowego i zespół nerwu międzykostnego tylnego. Zespoły te wyróżnia się na podstawie charakterystycznych objawów.

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Section: Missankov Et Al Examining Fifty-eight Upper Limbsmentioning

confidence: 59%

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

Lepich,

Karaś,

Kania

et al. 2024

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“…Anatomic studies on the association between PIN and the supinator muscle exist [4][5][6][7][8][9][10][11][12][13][14]. However, detailed information on the precise point of branching out of the radial nerve to innervate each posterior compartment muscle in the forearm with the superficial branch is needed.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the Branching Patterns of the Radial Nerve and Supinator Muscle

Jeon

Kim

Kwon

et al. 2021

BioMed Research International

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The posterior interosseous nerve (PIN) innervates the posterior compartment muscle of the forearm and is a continuation of the deep branch of the radial nerve. The anatomic descriptions of PIN vary among different authors. This study investigated the distribution patterns of PIN and its relationships to the supinator muscle. This study investigated which nerves innervate the posterior compartment muscles of the forearm, the radial nerve, and the PIN, using 28 nonembalmed limbs. Also, the points where the muscle attaches to the bone were investigated. The measured variables in this study were measured from the most prominent point of the lateral epicondyle of the humerus (LEH) to the most distal point of the radius styloid process. For each specimen, the distance between the above two points was assumed to be 100%. The measurement variables were the attachment area of the supinator and branching points from the radial nerve. The attachment points of the supinator to the radius and ulna were 47.9 % ± 3.6 % and 31.5 % ± 5.2 % , respectively, from the LEH. In 67.9% of the specimens, the brachioradialis and extensor carpi radialis longus (ECRL) were innervated by the radial nerve before superficial nerve branching, and the extensor carpi radialis brevis (ECRB) innervated the deep branch of the radial nerve. In 21.4% of the limbs, the nerve innervating the ECRB branched at the same point as the superficial branch of the radial nerve, whereas it branched from the radial nerve in 7.1% of the limbs. In 3.6% of the limbs, the deep branch of the radial nerve branched to innervate the ECRL. PIN was identified as a large branch without divisions in 10.7% and as a deep branch innervating the extensor digitorum in 14.3% of the limbs. The anatomic findings of this study would aid in the diagnosis of PIN syndromes.

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The terminal branch of the posterior interosseous nerve: an anatomic and histologic study

Cited by 2 publications

References 15 publications

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

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

Relationship between the Branching Patterns of the Radial Nerve and Supinator Muscle

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