Arthritis of the MCP is a distinguishing feature of rheumatoid arthritis, as opposed to the distal interphalangeal joint in osteoarthritis. In many quadrupeds, particularly horses and other larger animals, the metacarpophalangeal joint is referred to as the "fetlock". This term is translated literally as "foot-lock".

The second and third metacarpophalangeal joints (MCPJ) are relatively stiff and immobile in nature. The fourth and fifth MCPJ are relatively mobile in nature. Hence, The malunion of fractures of neck and shaft of second and third metacarpal is less tolerated than the fracture of fourth or fifth metacarpal.

Maximum synovial thickness was most often detected at the radial side of the 2nd MCPJ and 3rd MCPJ and ulnar side of the 4th MCPJ of both hands which is significantly higher (p < 0.05) in RA patients compared to healthy individuals. With high specificity (96%) and sensitivity (90%) the optimum cut-off value to distinguish RA patients and ...

2023年4月15日 · Each metacarpophalangeal joint has two planes of motion. It allows for flexion, extension, abduction, adduction, circumduction and limited rotation of the digit. All of the movements at the joint are produced by muscles of the forearm and hand. Flexion – produced by flexor pollicis brevis and longus.

2024年9月8日 · MCP Dislocations are a dislocation of the metacarpophalangeal joint, usually dorsal, caused by a fall and hyperextension of the MCP joint. Diagnosis can be made clinically and is confirmed by orthogonal radiographs. Treatment is closed reduction unless soft tissue interposition blocks reduction, in which case open reduction is indicated.

metacarpophalangeal joints (MCPJ) are relatively stiff and immo-bile in nature. The fourth and fifth MCPJ are relatively mobile in nature. Hence, The malunion of fractures of neck and shaft of sec-ond and third metacarpal is less tolerated than the fracture of fourth or fifth metacarpal. The metacarpals fan out in divergent manner from their ...

Reports suggest that metacarpal fractures comprise between 18-44% of all hand fractures, and about 88% of these occur in non-thumb metacarpals. The little metacarpal is the most commonly fractured of these bones, followed by the ring metacarpal, where shaft …

There are two main supporting ligaments traversing the metacarpophalangeal (MCP) joint of the thumb: the ulnar and radial collateral ligaments. Injuries to these ligaments can lead to symptomatic joint instability with subsequent pain, weakness and arthritis if ignored.

2023年7月27日 · Metacarpal fractures are some of the most common upper-extremity fractures that occur in adults. In general, metacarpal shaft fractures occur in four configurations: transverse, short oblique, long oblique, and comminuted. Most of these fractures can be successfully treated via nonoperative management.

2016年1月1日 · To compare ultrasound synovial thickness of the 2nd, 3rd and 4th metacarpophalangeal joints (MCPJ) in a group of patients with proven rheumatoid arthritis (RA) and a control group of normal ...