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ID 31338
JaLCDOI
フルテキストURL
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著者
Takagoshi, Hidekazu Okayama Universitry
Hashizume, Hiroyuki Okayama University
Nishida, Keiichiro Okayama Univeristy Kaken ID researchmap
Masaoka, shunji Okayama Uniiversity
Asahara, Hiroshi Okayama University
Inoue, Hajime Okayama University
抄録

The fibrous components of the metacarpophalangeal (MP) joint including the palmar plate, the collateral ligament and the dorsal plate were studied with particular attention paid to the fibrous structure of the fibrous tendon sheath and the deep transverse metacarpal ligament. The tough fibrillar structure around the MP joint, especially the force nucleus, consisted of three types of mixed fibers: the fibrous tendon sheath of the A1 pulley, the deep transverse metacarpal ligament, and the palmar plate. The tendon sheath was located on the ulnar side in the index and middle fingers, on the central position in the ring finger, and on the radial side in the little finger. These fibrous connections among the fingers formed a transverse arch in the hand. The palmar plate of the MP joint was relatively rigid and appears to function as a cushion when flexed. A fold-like protrusion of the synovial layer of the palmar plate of the MP joint had a meniscoid function, which was larger than that of the proximal interphalangeal joint. The capsule of the MP joint was thicker at the dorsal area, forming a dorsal plate, which is a sliding floor of the extensor mechanism and has a meniscoid function for joint congruity. The main lateral stabilizer consisted of collateral ligaments and accessory collateral ligaments anchored to the palmar plate. These structures act together as a "phalangeal cuff", connecting the proximal phalanx to the metacarpal head and sta

キーワード
metacarpophalangeal joint
collagen framework
Amo Type
Article
発行日
1998-02
出版物タイトル
Acta Medica Okayama
52巻
1号
出版者
Okayama University Medical School
開始ページ
19
終了ページ
26
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Science KeyUT