Syndromes of compression of the median nerve in the proximal forearm (pronator teres syndrome; anterior interosseous nerve syndrome)

1979 ◽  
Vol 93 (4) ◽  
pp. 307-312 ◽  
Author(s):  
H. Nigst ◽  
W. Dick
Keyword(s):  
Median Nerve ◽  
Pronator Teres ◽  
Anterior Interosseous Nerve ◽  
Proximal Forearm ◽  
Anterior Interosseous Nerve Syndrome

scholarly journals A rare and severe case of pronator teres syndrome

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Francisco Serra E Moura ◽  
Anil Agarwal
Keyword(s):  
Median Nerve ◽  
Severe Case ◽  
Pronator Teres ◽  
Anterior Interosseous Nerve ◽  
Median Nerve Neuropathy ◽  
Tunnel Syndrome ◽  
Proximal Forearm ◽  
Anterior Interosseous Nerve Syndrome ◽  
Timely Referral ◽  
Pure Motor

Abstract We present the case of a patient with severe symptoms of proximal forearm median nerve neuropathy. Over the course of 5 years his condition progressed to encompass rare features of combined pronator teres syndrome (PTS) and anterior interosseous nerve syndrome (AINS). The aetiology was found to be pronator teres compression and was managed successfully by surgical decompression. Proximal forearm median nerve compression should be considered as a continuum with two classic endpoints. At one end of the spectrum pure PTS presents with solely or mainly sensory symptoms, whereas at the other end AINS presents with pure motor symptoms. Hence, all possible anatomical sites of compression must be surgically explored in all cases of PTS or AINS, regardless of symptomatology. Timely referral to an experienced specialist is encouraged to ensure good outcomes, whenever a primary care practitioner encounters an atypical carpal tunnel syndrome-like presentation.

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.

scholarly journals Anterior interosseous nerve syndrome: Fascicular motor lesions of median nerve trunk

Neurology ◽  
2014 ◽  
Vol 82 (7) ◽  
pp. 598-606 ◽  
Author(s):  
M. Pham ◽  
P. Baumer ◽  
H.-M. Meinck ◽  
J. Schiefer ◽  
M. Weiler ◽  
...  
Keyword(s):  
Median Nerve ◽  
Nerve Trunk ◽  
Anterior Interosseous Nerve ◽  
Anterior Interosseous Nerve Syndrome

Nerves

2011 ◽  
Author(s):  
David Warwick ◽  
Roderick Dunn ◽  
Erman Melikyan ◽  
Jane Vadher
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Ulnar Nerve ◽  
Upper Limb ◽  
Carpal Tunnel ◽  
Clinical Assessment ◽  
Ulnar Nerve Compression ◽  
Anterior Interosseous Nerve ◽  
Tunnel Syndrome ◽  
Anterior Interosseous Nerve Syndrome

Neuroanatomy 298Examination of the nerves of the upper limb 300Clinical assessment 304Neurophysiology tests 306Nerve injury 310Compression neuropathy 314Carpal tunnel syndrome 315Proximal compression of the median nerve 318Anterior interosseous nerve syndrome 319Ulnar nerve compression at the elbow ...

An Anomaly of the Median Artery Associated with the Anterior Interosseous Nerve Syndrome

1992 ◽  
Vol 17 (5) ◽  
pp. 507-509 ◽  
Author(s):  
T. W. PROUDMAN ◽  
P. J. MENZ
Keyword(s):  
Flexor Digitorum Profundus ◽  
Vascular Compression ◽  
Pronator Quadratus ◽  
Pronator Teres ◽  
Longus Muscle ◽  
Anterior Interosseous Nerve ◽  
Median Artery ◽  
Anterior Interosseous Nerve Syndrome ◽  
Pronator Quadratus Muscle ◽  
Flexor Digitorum

The anterior interosseous nerve syndrome is characterized by paralysis of the flexor pollicis longus muscle, the flexor digitorum profundus muscle to the index and middle fingers, and the pronator quadratus muscle. The most common cause is entrapment of the anterior interosseous nerve near its origin from the median nerve by a variety of structures. Compression is most frequently caused by the deep head of the pronator teres muscle, or the fibrous arcade of the flexor digitorum superficialis muscle. Vascular compression has been reported infrequently. A patient with anterior interosseous nerve syndrome was found at operation to have the median artery passing through the anterior interosseous nerve just below the elbow. This artery has not previously been associated with the syndrome. A cadaver dissection confirmed the relationship.

Musculoaponeurotic Variations along the Course of the Median Nerve in the Proximal Forearm

1987 ◽  
Vol 12 (3) ◽  
pp. 359-363
Author(s):  
A. L. DELLON ◽  
SUSAN E. MACKINNON
Keyword(s):  
Median Nerve ◽  
Nerve Compression ◽  
Flexor Digitorum Superficialis ◽  
Flexor Pollicis Longus ◽  
Pronator Teres ◽  
Proximal Forearm ◽  
Flexor Digitorum

31 cadaver arms have been dissected to study the variations in the anatomy of the muscles and fibrous arches which might cause compression of the median nerve in the forearm. Pronator teres always had a superficial head and usually a deep head. Flexor digitorum superficialis varied greatly in its site of origin. The median nerve might be crossed by two, one or no fibro-aponeurotic arches. Gantzer’s muscle, an accessory head of flexor pollicis longus, was present in 45% of cadavers. No ligament of Struthers was found. Possible sites and causes of nerve compression are discussed.

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