scholarly journals Topographical anatomy of the pronator teres muscle and median nerve: a study using histological sections of human fetuses

2017 ◽  
Vol 94 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Shinichi ABE ◽  
Naomitsu TOMITA ◽  
Masahito YAMAMOTO ◽  
Minako SATO ◽  
Hiroshi ABE ◽  
...  
Keyword(s):  
Median Nerve ◽  
Human Fetuses ◽  
Histological Sections ◽  
Pronator Teres ◽  
Topographical Anatomy

Transient Proximal Median Nerve Entrapment in a Tetraplegic Hand Cyclist Following a 24-Hour Endurance Race

2021 ◽  
Author(s):  
Søren Bruno Elmgreen
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Unusual Case ◽  
Endurance Athlete ◽  
Nerve Entrapment ◽  
Pronator Teres ◽  
Anterior Interosseous Nerve ◽  
Tunnel Syndrome ◽  
Anterior Interosseous Nerve Syndrome

ABSTRACT Median nerve entrapment is a frequent disorder encountered by all clinicians at some point of their career. Affecting the distal median nerve, entrapment occurs most frequently at the level of the wrist resulting in a carpal tunnel syndrome. Median nerve entrapment may also occur proximally giving rise to the much less frequent pronator teres syndrome and even less frequent anterior interosseous nerve syndrome, which owing to the paucity of cases may prove challenging to diagnose. An unusual case of anterior interosseous syndrome precipitated by extraordinary exertion in a tetraplegic endurance athlete is presented with ancillary dynamometric, electrodiagnostic, ultrasonographic, and biochemical findings.

Diagnostic Biopsy of the Pronator Teres and a Motor Branch of the Median Nerve: Indications and Technique

2012 ◽  
Vol 37 (12) ◽  
pp. 2570-2575 ◽  
Author(s):  
Christopher J. Dy ◽  
Dale J. Lange ◽  
Kristofer J. Jones ◽  
Rohit Garg ◽  
Edward F. DiCarlo ◽  
...  
Keyword(s):  
Median Nerve ◽  
Motor Branch ◽  
Pronator Teres ◽  
Diagnostic Biopsy

Neurotization as an alternative for restoring finger and wrist extension

2001 ◽  
Vol 94 (5) ◽  
pp. 795-798 ◽  
Author(s):  
Mehmet Erkan Üstün ◽  
Tunç Cevat Öğün ◽  
Mustafa Büyükmumcu
Keyword(s):  
Median Nerve ◽  
Motor Nerve ◽  
Flexor Digitorum Profundus ◽  
Posterior Interosseous Nerve ◽  
Flexor Pollicis Longus ◽  
Pronator Quadratus ◽  
Content Type ◽  
Pronator Teres ◽  
Flexor Digitorum ◽  
Fine Print

Object. In cases of irreparable injuries to the radial nerve or in cases in which nerves are repaired with little anticipation of restoration of function, tendon transfers are widely used. In this study, the authors searched for a more natural alternative for selectively restoring function, with the aid of a motor nerve transfer. Methods. Ten arms from five cadavers were used in the study. The posterior interosseous nerve and the median nerve together with their motor branches were exposed in the proximal forearm. The possibility of posterior interosseous nerve neurotization via the median nerve through its motor branches leading to the pronator teres, flexor pollicis longus, flexor digitorum profundus, and pronator quadratus muscles was investigated. The lengths of the nerves from points of divergence and their widths were measured using calipers, and the means with standard deviations of all nerves were calculated. Motor branches to the pronator teres, flexor pollicis longus, and pronator quadratus muscles were found to be suitable for neurotization of the posterior interosseous nerve at different levels and in various combinations. The motor nerve extending to the flexor digitorum profundus muscle was too short to use for transfer. Conclusions. These results offer a suitable alternative to tendon transfer for restoring finger and wrist extension in cases of irreversible radial palsy. The second step would be clinical verification in appropriate cases.

scholarly journals Uncommon course of the ulnar artery through the pronator teres muscle

1970 ◽  
Vol 52 (195) ◽  
pp. 946-948
Author(s):  
Katerina Vymazalová ◽  
Lenka Vargová ◽  
Marek Joukal
Keyword(s):  
Median Nerve ◽  
Anatomical Variation ◽  
Ulnar Artery ◽  
Predisposing Factor ◽  
Anatomical Structures ◽  
Pronator Teres ◽  
Flexor Carpi Ulnaris ◽  
Cubital Fossa ◽  
The Right ◽  
Flexor Digitorum

In this paper, we describe a very rare variant in the course of the ulnar artery that we encountered in dissecting the right upper limb of a 74-year-old man. The ulnar artery arose standardly from the brachial artery in the cubital fossa. However, its ensuing course differed from the norm. The artery entered together with the ulnar vein and median nerve into the pronator canal (between the humeral and ulnar heads of the pronator teres). Further, the ulnar artery descended classically to the ulnar side of the forearm between the flexor carpi ulnaris and flexor digitorum superficialis. Knowledge of this variation in the course of the ulnar artery may have significance in clinical practice because accumulation of anatomical structures in the pronator canal could be a predisposing factor for the compression of nerve or blood vessels. Keywords: anatomical variation; median nerve; pronator canal; pronator teres muscle; ulnar artery.  

scholarly journals Study of muscular branch of median nerve to the pronator teres

2013 ◽  
Vol 2 (2) ◽  
pp. 67
Author(s):  
MK Bindurani ◽  
HM Lokesh ◽  
BN Nanjundappa
Keyword(s):  
Median Nerve ◽  
Pronator Teres ◽  
Muscular Branch

C0068 Prediction model for minimising the risk of median nerve puncture with dry needling approach at pronator teres muscle

2018 ◽  
Author(s):  
Daniel Muñoz García ◽  
Raúl Ferrer Peña ◽  
Juan Antonio Valera Calero ◽  
Rubén Conde Lima ◽  
Israel del Río Santamaría
Keyword(s):  
Prediction Model ◽  
Median Nerve ◽  
Dry Needling ◽  
Pronator Teres

Brachial Plexus Variations in Human Fetuses

Neurosurgery ◽  
2003 ◽  
Vol 53 (3) ◽  
pp. 676-684 ◽  
Author(s):  
İsmihan İlknur Uysal ◽  
Muzaffer Şeker ◽  
Ahmet Kağan Karabulut ◽  
Mustafa Büyükmumcu ◽  
Taner Ziylan
Keyword(s):  
Brachial Plexus ◽  
Median Nerve ◽  
Surgical Procedures ◽  
Distal Part ◽  
Axillary Nerve ◽  
Human Fetuses ◽  
Anatomic Variations ◽  
Normal Position ◽  
Morphological Variations ◽  
Posterior Division

Abstract OBJECTIVE We examined the anatomic variations of the brachial plexus (BP) in human fetuses. METHODS This study was performed with 200 BPs from spontaneously aborted fetuses without detectable malformations. The plexuses were dissected, and the normal position and/or morphological variations of the BP were determined and photographed. RESULTS There were no variations in 93 plexuses, and 107 plexuses were observed to have different variations. Morphological variations were observed more frequently among female fetuses and right sides. The BPs were composed mostly of the C5, C6, C7, and C8 nerves and the T1 nerve (71.5%). A prefixed plexus was observed in 25.5% of cases, and a postfixed plexus was observed in 2.5% of cases. In one case (0.5%), the C4 and T2 nerves joined the formation. The inferior trunk was not formed in 9% of cases. The superior trunk was not formed in 1% of cases. In one plexus, the superior trunk was formed by the ventral rami of the C4 and C5 nerves. In one case, the inferior trunk was formed by the ventral rami of the T1 and T2 nerves. Division variations were observed most frequently. There were also variations in the terminal branches, such as the roots of the median nerve joining in the distal part of the arm (8.5%), the axillary nerve being separate from the posterior division of the superior trunk (2.5%), and a connection existing between the median and musculocutaneous nerves (1%). CONCLUSION Knowledge of BP variations is important for surgeons who perform surgical procedures in the cervical and axillary regions.

Median Nerve Compression within the Humeral Head of Pronator Teres

1994 ◽  
Vol 19 (6) ◽  
pp. 709-710 ◽  
Author(s):  
N. TULWA ◽  
D. LIMB ◽  
R. F. BROWN
Keyword(s):  
Median Nerve ◽  
Humeral Head ◽  
Nerve Compression ◽  
Fibrous Band ◽  
Compression Neuropathy ◽  
Pronator Teres ◽  
Anterior Aspect ◽  
Pronator Syndrome ◽  
Anatomical Arrangement ◽  
A Site

We describe a case of the pronator syndrome caused by compression of the median nerve by a fibrous band as the nerve passed through the humeral head of origin of pronator teres. This rare anatomical arrangement resulted in displacement of the median nerve to the anterior aspect of the medial humeral epicondyle and, as far as we are aware, has not previously been described as a site of compression neuropathy.

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