A unique variation in the course of the musculocutaneous nerve

Pontell, Matthew E.; Scali, Frank; Marshall, Ewarld

doi:10.1002/ca.21173

Cited by 10 publications

(5 citation statements)

References 23 publications

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“…These communications can cause inappropriate nerve blockade and/or blockade of unexpected regions during anaesthesia. The understanding of possible variations will also aid proper diagnosis of sensorimotor symptoms (Pontell et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Multiple Variations of the Branches of the Brachial Plexus with Bilateral Connections between Ulnar and Radial Nerves

2012

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SUMMARY:During routine dissection of the upper limbs of a Caucasian male cadaver, multiple variations of the branches of the brachial plexus were observed. On the left side, the musculocutaneous nerve was absent and the muscles of the anterior compartment of the arm were innervated by the median nerve. The median nerve was also formed from three roots viz; two from the lateral and one from the medial cord of the brachial plexus. On the right side, the musculocutaneous nerve contributed a long communicating branch to the median nerve in the distal half of the arm. There were also communicating branches between the ulnar and radial nerves in both limbs at the humeral level. The co-existence of these variations appears to be unique and has not been reported in the literature reviewed. The anatomic and clinical significance of these variations is discussed.

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Section: Discussionmentioning

confidence: 99%

Multiple Variations of the Branches of the Brachial Plexus with Bilateral Connections between Ulnar and Radial Nerves

2012

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“…However, in the available literature not much importance has been levied upon the UN variations in terms of both its atypical formation and abnormal communication with the neighboring nerves at the high humeral level or in the axilla. Thorough knowledge on prevalence of variant form of UN is imperative for the clinicians in the diagnostic approaches of sensorimotor impairment syndromes [ 5 ].…”

Section: Discussionmentioning

confidence: 99%

Anatomical Study of the Ulnar Nerve Variations at High Humeral Level and Their Possible Clinical and Diagnostic Implications

Guru

Kumar

Shanthakumar

et al. 2015

Anatomy Research International

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Background. Descriptive evaluation of nerve variations plays a pivotal role in the usefulness of clinical or surgical practice, as an anatomical variation often sets a risk of nerve palsy syndrome. Ulnar nerve (UN) is one amongst the major nerves involved in neuropathy. In the present anatomical study, variations related to ulnar nerve have been identified and its potential clinical implications discussed. Materials and Method. We examined 50 upper limb dissected specimens for possible ulnar nerve variations. Careful observation for any aberrant formation and/or communication in relation to UN has been carried out. Results. Four out of 50 limbs (8%) presented with variations related to ulnar nerve. Amongst them, in two cases abnormal communication with neighboring nerve was identified and variation in the formation of UN was noted in remaining two limbs. Conclusion. An unusual relation of UN with its neighboring nerves, thus muscles, and its aberrant formation might jeopardize the normal sensori-motor behavior. Knowledge about anatomical variations of the UN is therefore important for the clinicians in understanding the severity of ulnar nerve neuropathy related complications.

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“…These communications may create inappropriate nerve blockade and /or blockade of unexpected regions during anesthesia. The understanding of possible variations will also help specialists to reach proper diagnosis of sensorimotor symptoms (Pontell et al, 2011). Therefore, awareness of such variations can be important for clinician in order to diagnostic procedures and surgical intervention on clinical practices, because unfamiliar with this anomaly may lead to iatrogenic injuries during surgical procedures on this region.…”

Section: Discussionmentioning

confidence: 99%

Connection between Radial and Ulnar Nerves at Humeral Level And Its Clinical Significance: A Cadaveric Case Report

Taheri

Afshar

2015

Int. J. Morphol.

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A unique variation in the course of the musculocutaneous nerve

Cited by 10 publications

References 23 publications

Multiple Variations of the Branches of the Brachial Plexus with Bilateral Connections between Ulnar and Radial Nerves

Multiple Variations of the Branches of the Brachial Plexus with Bilateral Connections between Ulnar and Radial Nerves

Anatomical Study of the Ulnar Nerve Variations at High Humeral Level and Their Possible Clinical and Diagnostic Implications

Connection between Radial and Ulnar Nerves at Humeral Level And Its Clinical Significance: A Cadaveric Case Report

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