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Muscle Nerve. 2012 Oct;46(4):540-7. doi: 10.1002/mus.23422.

A more detailed mechanism to explain the "bands of Fontana" in peripheral nerves.

Author information

1
Clinica Ortopedica, Università Cattolica, Largo Gemelli 8, I-00168 Roma, Italy. antonio.merolli@rm.unicatt.it

Abstract

INTRODUCTION:

In 1779, Fontana identified transverse and oblique bands along peripheral nerves. Subsequent studies pointed alternatively to endoneural or perineural components as the cause. Our aim was to clarify these conflicting findings.

METHODS:

Recoiling of the bands of Fontana was video-recorded in the rat sciatic nerve. Computer-assisted design (CAD) software was used to model the nerve by interference figures.

RESULTS:

In vivo microdissection showed distinctive, black-and-white, closely packed bands in the perineurium, which differed from the widely spaced, translucent, dark/pale gray, staggered bands in the endoneurium. CAD merging of these 2 patterns produced images resembling the bands observed in vivo.

CONCLUSIONS:

Two repetitive structures with different characteristics, 1 in the perineurium and the other in the endoneurium, merge to give the appearance of these bands.

PMID:
22987695
DOI:
10.1002/mus.23422
[Indexed for MEDLINE]

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