The Value of Axon Responses in Determining the Site of Lesion in Traction Injuries of the Brachial Plexus

George Bonney

doi:10.1093/brain/77.4.588

January 1, 1954Brain

The Value of Axon Responses in Determining the Site of Lesion in Traction Injuries of the Brachial Plexus

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Key Points

Determine the diagnostic value of peripheral axon responses in differentiating preganglionic from postganglionic lesions in brachial plexus traction injuries.
Evaluated cutaneous axon flare responses across anesthetic dermatomes in patients with severe traction injuries of the brachial plexus.
Correlated the presence or absence of peripheral axon reflex activity with anatomical continuity between sensory receptors and dorsal root ganglion cells.
Preservation of normal axon flare responses within clinically anesthetic skin regions indicated that dorsal root ganglion cell bodies remained intact, confirming a preganglionic lesion.
Absence of peripheral axon flare responses reflected distal wallerian degeneration, confirming a postganglionic disruption of the nerve pathway.

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Implication

Clinical investigation reveals axon responses identify lesion sites in brachial plexus traction injuries, indicating whether nerve root avulsion is preganglionic or postganglionic.

Abstract

GEORGE BONNEY; THE VALUE OF AXON RESPONSES IN DETERMINING THE SITE OF LESION IN TRACTION INJURIES OF THE BRACHIAL PLEXUS, Brain, Volume 77, Issue 4, 1 December

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George Bonney (1954) studied this question.

synapsesocial.com/papers/6a957b782273404a50fa6c1b https://doi.org/10.1093/brain/77.4.588

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The Value of Axon Responses in Determining the Site of Lesion in Traction Injuries of the Brachial Plexus

Key Points

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Implication

Abstract

Discussion

Cite This Study

The Value of Axon Responses in Determining the Site of Lesion in Traction Injuries of the Brachial Plexus

Key Points

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Implication

Abstract

Discussion

Cite This Study

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