The fourth metacarpal bone (metacarpal bone of the ring finger) is shorter and smaller than the third. The base is small and quadrilateral; its superior surface presents two facets, a large one medially for articulation with the hamate, and a small one laterally for the capitate.

2018年8月4日 · What is the Fourth Metacarpal Bone. It is the metacarpal associated with the ring finger, shaping the palm, and allowing proper use of the hand [1]. It is divided into a head and a base, joined by the long shaft or body [2]. Where is it Located

2025年1月2日 · Metacarpal Fractures are the most common hand injury and are divided into fractures of the head, neck, or shaft. Diagnosis is made by orthogonal radiographs the hand. Treatment is based on which metacarpal is involved, location of the fracture, and the rotation/angulation of the injury.

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.

2018年3月21日 · provides tension on the collateral ligaments of the MCP, preventing shortening and subsequent stiffening while the joint is immobilized; The most common fracture patterns, wherein the 4th and/or 5th metacarpals are involved, can be splinted with an ulnar gutter splint, as demonstrated below; Less commonly, the radial metacarpals are effected.

Fourth metacarpal: The bone that connects your wrist to your ring finger. Fifth metacarpal: The bone that connects your wrist to your pinkie finger. How is a metacarpal fracture classified?

Metacarpal fractures typically occur secondary to a direct blow or fall directly onto the hand. These fractures commonly occur during athletic activities, particularly in contact sports. Almost one-fourth of cases occur during athletic events. Falls are typically the cause of the elderly. Men are more likely to be affected than women.

Boxer's Fracture (4th metacarpal) Boxer's Fracture (5th metacarpal) Treatment General Fracture Management. Acute pain management; Open fractures require immediate IV antibiotics and urgent surgical washout; Neurovascular compromise from fracture requires emergent reduction and/or orthopedic intervention;

Fifth and fourth CMC joints are mobile and the fracture of the base of the fifth metacarpal is an unstable injury. The deforming forces of the extensor carpi ulnaris lead to dorsal, ulnar, and proximal migration of the distal fragment. The injuries are treated as on the lines of the treatment of Bennet’s fracture-dislocation . Fig. 6.

2022年11月1日 · Metacarpophalangeal (MCP) joint dislocations typically occur in a dorsal fashion following trauma, most commonly a fall causing hyperextension of the joint. Hyperextension of the MCP joint may lead to avulsion of the volar plate from the metacarpal head or neck.