ISOLATED ABDUCTOR DIGITI MINIMI PALSY — AN UNUSUAL CASE OF GUYON'S CANAL COMPRESSION

Hand Surgery ◽  
2013 ◽  
Vol 18 (02) ◽  
pp. 251-253 ◽  
Author(s):  
Kannan Kumar ◽  
Sunil Thirkannad
Keyword(s):  
Differential Diagnosis ◽  
Unusual Case ◽  
Ulnar Artery ◽  
Ulnar Neuropathy ◽  
Guyon’S Canal ◽  
Motor Branch ◽  
Surgical Exploration ◽  
Abductor Digiti Minimi ◽  
Guyon's Canal ◽  
Anomalous Branch

We present a case of isolated Abductor Digiti Minimi (ADM) palsy caused by an anomalous branch from the ulnar artery. Electrophysiology suggested selective involvement of the motor branch to the ADM in the Guyon's canal. Surgical exploration revealed an anomalous branch of the ulnar artery causing a pincer effect on the nerve to the ADM. Division and ligation of this branch effectively decompressed the nerve and the patient recovered satisfactorily. This report highlights the need to consider vascular aberrations as a differential diagnosis for ulnar neuropathy in Guyon's canal.

scholarly journals An Aberrant Abductor Digiti Minimi Muscle Crossing Guyon's Canal

2016 ◽  
Vol 06 (03) ◽  
pp. 235-237
Author(s):  
YongSeok Nam ◽  
SeungHwan Hwang ◽  
SuRak Eo
Keyword(s):  
Ulnar Artery ◽  
Guyon’S Canal ◽  
Artery Thrombosis ◽  
Male Cadaver ◽  
Abductor Digiti Minimi ◽  
Tunnel Syndrome ◽  
Guyon's Canal ◽  
Ulnar Tunnel ◽  
Abductor Digiti Minimi Muscle

AbstractAnomalous hypothenar muscles in the wrist are relatively common with 47% prevalence, and their possible consequences associated with Guyon's canal are well known. The accessory of the abductor digiti minimi muscle (ADM) is known to be one of the causes of ulnar tunnel syndrome or ulnar artery thrombosis. A unique ADM was found in the volar wrist region of an 87-year-old male cadaver passing through Guyon's canal.

scholarly journals Pigmented Villo Nodular Synovitis as an Atypical Cause of Deep Motor Branch Neuropathy

2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Jon E. Hammarstedt ◽  
Nicholas C. Duethman ◽  
David G. Dennison
Keyword(s):  
Ulnar Nerve ◽  
Ulnar Artery ◽  
Motor Deficit ◽  
Motor Deficits ◽  
Guyon’S Canal ◽  
Motor Branch ◽  
Ulnar Nerve Compression ◽  
Common Causes ◽  
Guyon's Canal ◽  
Ulnar Tunnel

Introduction: Compression of the ulnar nerve in Guyon’s canal results in ulnar tunnel syndrome (UTS). The patient may present with sensory and motor deficits (zone 1), motor deficit (zone 2), or sensory deficit (zone 3). The most common causes of UTS include ganglion cysts, idiopathic ulnar nerve compression, occupational pressure neuritis (repetitive compression), prolonged compression, hook of hamate fractures, and arterial thrombus or aneurysm. Case Report: We report an atypical cause of UTS involving pigmented villonodular synovitis (PVNS) with a review of the literature. Surgical decompression of the ulnar nerve at Guyon’s canal has resulted in resolving motor weakness and improved interosseous strength at latest follow-up. Conclusion: The most common causes of UTS are ganglion, occupational neuritis, prolonged compression, and ulnar artery thrombi/aneurysms. However, other more rare causes such as PVNS should be considered in the appropriate patient. Keywords: Neuropathy, ulnar nerve, ulnar tunnel.

ABNORMAL ULNAR NERVE ANATOMY IN THE DISTAL FOREARM PRE-DISPOSES TO POST-TRAUMATIC ULNAR NEURITIS AT THE WRIST

Hand Surgery ◽  
2005 ◽  
Vol 10 (02n03) ◽  
pp. 303-305
Author(s):  
C. J. Yeo ◽  
C. P. Little ◽  
S. C. Deshmukh
Keyword(s):  
Ulnar Nerve ◽  
Anatomical Variations ◽  
Ulnar Neuropathy ◽  
Distal Forearm ◽  
Guyon’S Canal ◽  
Post Traumatic ◽  
Guyon's Canal ◽  
Ulnar Neuritis ◽  
Surgical Release

Anatomical variations of the ulnar nerve have been described at the level of the elbow and in Guyon's canal, while the path in the forearm has always been assumed to be constant. We present a case of compressive ulnar neuropathy at the wrist pre-disposed by a presumed congential variation of the path of the ulnar nerve at the level of the wrist which improved following surgical release of the constriction caused as a result of it.

scholarly journals Lipoma of Guyon’s canal causing ulnar neuropathy

2009 ◽  
Vol 10 (2) ◽  
pp. 101-103 ◽  
Author(s):  
Seema Rohilla ◽  
Rohtas K. Yadav ◽  
Dhara B. Dhaulakhandi
Keyword(s):  
Ulnar Neuropathy ◽  
Guyon’S Canal ◽  
Guyon's Canal

Ulnar Artery Thrombosis in Guyon's Canal

2015 ◽  
Vol 20 (2) ◽  
pp. 55 ◽  
Author(s):  
Ki-Won Lee ◽  
Hyun-Il Lee ◽  
Chung-Hwan Kim ◽  
Sang-Jun Shim ◽  
Hyung-Kwon Cho ◽  
...  
Keyword(s):  
Ulnar Artery ◽  
Guyon’S Canal ◽  
Artery Thrombosis ◽  
Guyon's Canal

scholarly journals Delayed ulnar nerve palsy secondary to ulnar artery pseudoaneurysm distal to Guyon’s canal following penetrating trauma to the hand

2013 ◽  
Vol 95 (5) ◽  
pp. e1-e2 ◽  
Author(s):  
PF Dobson ◽  
B Purushothaman ◽  
Y Michla ◽  
S England ◽  
MK Krishnan ◽  
...  
Keyword(s):  
Ulnar Nerve ◽  
Nerve Palsy ◽  
Penetrating Trauma ◽  
Ulnar Artery ◽  
Anatomical Location ◽  
Guyon’S Canal ◽  
Artery Pseudoaneurysm ◽  
Ulnar Nerve Palsy ◽  
Operative Planning ◽  
Guyon's Canal

Compression of the ulnar nerve in Guyon’s canal is an uncommon phenomenon. Reports of ulnar nerve palsy secondary to ulnar artery pseudoaneurysm at this anatomical location are very rare and equivalent pathology just distal to this site is unheard of. Here we present such a case, which featured a delayed onset of symptoms. This followed penetrating trauma to the hand. Our methods for diagnosis, operative planning and surgical treatment are included.

scholarly journals Ulnar Neuropathy Caused by a Lipoma in Guyon's Canal. Case Report.

2000 ◽  
Vol 40 (6) ◽  
pp. 335-338 ◽  
Author(s):  
Kyoji SAKAI ◽  
Takumi TSUTSUI ◽  
Mizuho AOI ◽  
Hiroshi SONOBE ◽  
Hiroshi MURAKAMI
Keyword(s):  
Case Report ◽  
Ulnar Neuropathy ◽  
Guyon’S Canal ◽  
Guyon's Canal
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