The mcp joint of the thumb is a condyloid hinged joint with a quadrilateral rather than spherical metacarpal head. The joint serves as the transition between the palm and the fingers.
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Anatomy of the mcp joint of the thumb the mcp joint of the thumb is a condylar type articulation that allows motion primarily in the flexion extension axis and also some degree of rotation.
Mcp anatomy. However their pathology can be different. Modern concrete products llc mcp one of the leading concrete products manufacturing entities in oman was established with the aim to extend value for money to its customers mainly in sohar and the al batinah region. The metacarpophalangeal mcp joint is a diarthrodial joint where the large convex head of the distal aspect of the metacarpal articulates with the concave shaped proximal aspect of the phalange.
Similarly to the pip and mcp joints of the finger the mcp joint of the thumb is stabilized by the volar plate collateral ligaments and musculotendinous structures. The ligaments of the metacarpophalangeal mp joints proximal interphalangeal pip joints distal interphalangeal dip joints and the interphalangeal ip joint of the thumb are all very similar in configuration. These joints are of the condyloid kind formed by the reception of the rounded heads of the metacarpal bones into shallow cavities on the proximal ends of the proximal phalanges.
The metacarpophalangeal joints mcp are situated between the metacarpal bones and the proximal phalanges of the fingers. Additionally the volar plate of the thumb mpj usually contains 2 sesamoids that articulate with the metacarpal head. The capsule and ligaments of this joint are similar to those of the finger mcp joint.
The mcp joint collateral ligaments of the thumb and lesser digits extend with slight obliquity from shallow depressions on the radial and ulnar aspects of the metacarpal heads to the bases of the proximal phalanges.
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