Metacarpophalangeal (MCP) joints: Bones and ligaments - Kenhub
网页2023年10月30日 · The metacarpophalangeal joints (MCP) are a collection of condyloid joints that connect the metacarpus, or palm of the hand, to the fingers. There are five separate metacarpophalangeal joints that connect each metacarpal bone to the corresponding proximal phalanx of each finger.
MCP Joint Arthritis - American Society for Surgery of the Hand
网页MCP joints are important for both pinching and gripping. MCP joint arthritis is most common in the thumb and index fingers due to the stress of pinching. The different joints of the hand are shown in Figure 1.
MCP Joint Arthritis - Hand - Orthobullets
网页5 天之前 · isolated laxity of the volar MCP joint capsule leads to progressive pull of the intrinsic and extrinsic musculature resulting in a swan neck deformity. thumb deformity observed in inflammatory arthritis. EPL tendon is displaced ulnarly and volarly, which leads to the inability to actively extend the MCP joint.
The Metacarpophalangeal Joint - Ligaments - TeachMeAnatomy
网页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. Thumb. Flexion – produced by flexor pollicis brevis and longus.
Metacarpophalangeal joint - Wikipedia
网页The metacarpophalangeal joints (MCP) are situated between the metacarpal bones and the proximal phalanges of the fingers. [1] . 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. [1] .
Radial Collateral Ligament Injuries of the Thumb Metacarpophalangeal Joint
网页2022年10月28日 · However, the radial collateral ligament is increasingly recognized as critical for the overall stability of the thumb metacarpophalangeal joint. This article sets out to provide a comprehensive review of RCL injuries of the thumb MCP joint, including epidemiology, biomechanics, diagnosis, and treatment.
Anatomy, Shoulder and Upper Limb, Hand Metacarpal Phalangeal Joint
网页2023年10月24日 · The MCP joint is a condyloid type enabling motion in 2 planes: [1] sagittal plane: flexion and extension. coronal plane: adduction and abduction. Thumb MCP Joint. The proximal convex surface of the 1st metacarpal bone is opposed by the elliptical cavity of the thumb's proximal phalanx.
Anatomy, Shoulder and Upper Limb, Metacarpophalangeal Joints
网页2023年8月14日 · The MCP joint of the thumb is structurally and functionally similar to the MCP joints of the other digits; however, there are differences and these will be noted when relevant. The thumb MCP joint is a hinge joint that allows up to 80 to 90 degrees of flexion with minimal extension, adduction, or abduction. [1]
Sprained Thumb - OrthoInfo - AAOS
网页The ulnar collateral ligament (UCL) of the thumb is a strong band of tissue running along the inside of the metacarpophalangeal (MCP) joint, which is where the thumb meets the palm. This ligament keeps your thumb stable, especially when …
Management of the Metacarpophalangeal and ... - Hand Clinics
网页Behind only osteoarthritis of the distal interphalangeal joint of the index finger, basilar thumb osteoarthritis at the trapeziometacarpal (TMC) joint is the second most common location of osteoarthritis in the hand, 1 present in up to 40% of women older than 80 years, most often in the nondominant hand. 2 Advanced basilar thumb osteoarthritis ...