Evaluation of the supinator muscle and deep branch of the radial nerve: impact on nerve compression

İ. Yağmurhan Gilan; V. Bennu Gilan; A. Hakan Öztürk

doi:10.1007/s00276-020-02480-0

Compression of the Radial Nerve Caused by an Occult Ganglion

Journal of Hand Surgery (European Volume) ◽

10.1016/s0266-7681(98)80073-9 ◽

1998 ◽

Vol 23 (3) ◽

pp. 420-421 ◽

Cited By ~ 21

Author(s):

R. STEIGER ◽

E. VÖGELIN

Keyword(s):

Radial Nerve ◽

Nerve Palsy ◽

Nerve Compression ◽

Posterior Interosseous Nerve ◽

Supinator Muscle

We report on three patients with radial nerve compression in the region of the supinator muscle caused by an occult ganglion. After excision of the ganglion and decompression of the posterior interosseous nerve, the nerve palsy resolved completely in all cases.

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The course and branching pattern of the deep branch of the radial nerve in relation to the supinator muscle in fetus elbow

Surgical and Radiologic Anatomy ◽

10.1007/s00276-009-0487-x ◽

2009 ◽

Vol 31 (8) ◽

pp. 591-596 ◽

Cited By ~ 8

Author(s):

Ilkan Tatar ◽

Necdet Kocabiyik ◽

Ozcan Gayretli ◽

Hasan Ozan

Keyword(s):

Radial Nerve ◽

Branching Pattern ◽

Deep Branch ◽

Supinator Muscle

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The supinator muscle: anatomical bases for deep branch of the radial nerve entrapment

Surgical and Radiologic Anatomy ◽

10.1007/s00276-012-1024-x ◽

2012 ◽

Vol 35 (3) ◽

pp. 217-224 ◽

Cited By ~ 7

Author(s):

Charles Berton ◽

Guillaume Wavreille ◽

Frédéric Lecomte ◽

Bruno Miletic ◽

Hee-Jin Kim ◽

...

Keyword(s):

Radial Nerve ◽

Nerve Entrapment ◽

Deep Branch ◽

Supinator Muscle

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Morphological Classification of Arch of Frohse and Its Implication in Compression of Deep Branch of Radial Nerve

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/494 ◽

2021 ◽

Vol 10 (31) ◽

pp. 2412-2415

Author(s):

Syed Rehan Hafiz Daimi ◽

Srinivasa Rao Bolla ◽

Moizuddin Jawaduddin Khwaja ◽

Sanket Dadarao Hiware ◽

Shajiya Sarwar Moosa ◽

...

Keyword(s):

Radial Nerve ◽

Inferior Margin ◽

Deep Branch ◽

Supinator Muscle ◽

Essential Components ◽

Arcade Of Frohse ◽

Tunnel Syndrome ◽

Supinator Syndrome ◽

Superior Margin ◽

Radial Tunnel Syndrome

BACKGROUND Arcade of Frohse (AF) is a tendinous superior margin of superficial layer of supinator muscle which was first described by Frohse and Frankel in 1908. Since then it has been studied by many authors and held accountable as one of the essential components for compression of deep branch of radial nerve (DBRN) which leads to radial tunnel syndrome. Considering AF as an important element of compression, we made an attempt to classify it on the basis of its shape and to find out if any particular shape has a predominant role in compression of the nerve. We also observed the structure of superior and inferior margin of the supinator muscle. METHODS This study was conducted among 80 (70 males and 10 females) formalin fixed upper limbs present in the Department of Anatomy. The limbs were maintained in supine with slightly flexed position and dissection was performed to expose the supinator muscle. The proximal and distal borders of supinator muscles were examined meticulously with the help of magnified lens. The morphometric measurements were taken with the help of a digital caliper. RESULTS The FA is classified into four categories as loop, high arc, low arch and linear shaped. The most frequent shape observed was arch shaped (high and low arch) about 66%, followed by loop shaped (30%) and least was linear shaped (2.5%). On the basis of structure, the proximal and distal margin of supinator muscle was reported to be tendinous in majority of the cases. The distance of the AF from the fixed reproducible anatomical landmark like inter epicondylar line (IEL) was measured and the average distance found was 3.36 cm. CONCLUSIONS Knowledge of different shapes would aid surgeons and radiologists for better approach towards diagnosis and management of supinator syndrome. The morphometric finding can be useful for surgeons to locate the superior margin of supinator (AF) in surgical procedures for decompression of DBRN in supinator syndrome. KEY WORDS Arcade of Frohse, Inter Epicondylar Line, Supinator Muscle, Deep Branch of Radial Nerve and Radial Tunnel Syndrome

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

BioMed Research International ◽

10.1155/2021/8691114 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Anna Jeon ◽

Ye-Gyung Kim ◽

Seong-Oh Kwon ◽

Je-Hun Lee

Keyword(s):

Radial Nerve ◽

Distribution Patterns ◽

Styloid Process ◽

Posterior Compartment ◽

Lateral Epicondyle ◽

Deep Branch ◽

Supinator Muscle ◽

Superficial Branch ◽

Branching Points ◽

Extensor Carpi Radialis

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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