Use of hand not properly immobilised following metacarpal fracture may lead to lasting deformity and reduced function as well as possible damage to surrounding nerves, muscles, tendons, blood vessels, and ligaments. Complications if left Hand Metacarpal Fractures unattended A typical site for metacarpal base fractures is the fifth metacarpal. Loss of hand movement and function in the affected region. Bruising and deformity of the broken bone or knuckle. Signs and symptoms of Hand Metacarpal Fractures Fractures of the metacarpal base require reduction if there is greater than 2 mm of articular surface displacement or if there is significant angular deformity or dislocation of the CMC joint. Longitudinal force transmitted through a closed fist when punching. These connect with the heads of the metacarpals, forming the knuckles when the fist is closed.Ī direct blow to the hand. Each finger has three phalanges, whereas the thumb only has two, making a total of fourteen phalanges. The other four metacarpals of teh hand connect to the trapezoid, capitate and hamate, and lateral-medial surfaces of metacarpal bones. The first metacarpal bone is the shortest and most agile, and connects with the trapezium at the proximal end of the thumb. Each metacarpal bone comprises a base, neck and head, (from proximal to distal end). 1 Despite a relatively simple appearance on radiographs, Bennett fractures are considered unstable. It is defined as an intra-articular two-part fracture of the base of the first metacarpal bone. Most common type of thumb fracture nearly always accompanied by some subluxation or dislocation of CMC. The five metacarpal bones run between the wrist and the knuckles (which are the heads of the metacarpals). A Bennett fracture is a fracture of the base of the thumb resulting from forced abduction of the first metacarpal. Type I (Bennett's fracture) Fracture-dislocation of the base of the metacarpal (intra-articular) Base fragment is aligned with trapezium, but distal portion is subluxed by abductor pollicis longus. The most common fracture is of the neck of the fifth metacarpal. Metacarpal bones can fracture either at the base, shaft or neck. Of the handful of case reports on this injury, there appear to be 2 main patterns: fractures of the dorsal radial condyle and fractures of the volar ulnar condyle, which are attached to the extensor carpi radialis longus and flexor carpi. Metacarpal Fracture Procedure CPT Codes Closed treatment of metacarpal fracture, single without manipulation, each bone (26600) Closed treatment of. Metacarpals are vulnerable to direct force and can be fractured when a closed fist strikes another person or hard object, such injuries being referred to as boxer’s fracture. Fractures of the base of the index metacarpal are rare because of the inherent stability of the joint. They are common in football and basketball players. Hand Metacarpal Fractures ps Upper Limb Comments Off on Hand Metacarpal Fractures Brief Outline of Hand Metacarpal Fracturesīreaks or fractures in one or more of the metacarpal bones may result from a variety of events.
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