JaLCDOI 10.18926/AMO/31103
FullText URL fulltext.pdf
Author Watanabe, Hiroyoshi| Hashizume, Hiroyuki| Inoue, Hajime| Ogura, Takashi|
Abstract <p>The functional roles of the three-dimensional fibrillar ultrastructure of the proximal interphalangeal joint volar plates of human fingers were studied by light microscopy and scanning electron microscopy. The results revealed that the volar plate consists of three layers of fibers. The first layer forms an intracavity wall with two parts, the proximal &#34;membranous portion&#34;, and the distal &#34;meniscoid protrusion&#34; that is separated from the middle phalangeal base by a &#34;recess&#34;. The second layer contains the &#34;check ligament&#34;, which lies parallel to the fibers of the tendon, anchors tightly into the middle phalangeal base, and protects the joint from hyperextension. The third layer connects to the fibers from the accessory ligament and ligamentous tendon sheath of the A3 pulley, perpendicularly crosses the fibers of the tendon, becomes the periosteum of the middle phalangeal base, and functions as a hanging support for the volar plate and as a gliding floor for the flexor tendon.</p>
Keywords human finger proximal interphalangeal joint volar plate collagen framework
Amo Type Article
Published Date 1994-04
Publication Title Acta Medica Okayama
Volume volume48
Issue issue2
Publisher Okayama University Medical School
Start Page 101
End Page 108
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 8042533
Web of Science KeyUT A1994NJ77500006