5th metacarpal fracture icd 912/16/2023 A higher force injury can lead to more bending (displacement of the fracture). How much the fracture bends is somewhat dependant on how much force caused the injury in the first place. When a metacarpal fracture happens, the finger flexors and the intrinsic muscles act together to bend the fracture toward the palm (apex dorsal angulation). In between the metacarpal bones are the small intrinsic muscles (the interosseous and lumbrical muscles) that further help to control fine finger motion. There are extensor tendons on the back of the hand that act to extend or straighten the fingers. There are flexor tendons on the palm side of the metacarpals that act to flex, or bend the fingers as in making a fist. Each of the fingers (digits) has a corresponding metacarpal that links the wrist bones to the phalanges (individual bones of the fingers). The metacarpals are the tubular bones that comprise most of the space in the palm. For example Ronnie Brown of the Miami Dolphins and Tony Romo of the Dallas Cowboys each spent time on the IR from suffering a metacarpal fracture as did the Mavericks Jason Terry who had surgery to fix his metacarpal fracture. These injuries are also common in other sports besides boxing. This type of fracture has therefore become to be known as a “ boxer’s fracture.” Each of the digits of the hand has a corresponding metacarpal bone associated with it, and any of these metacarpals may be fractured during a high energy impact to an athlete’s hand. They classically occur in the small finger or metacarpal bone in boxers or athletes of other sports or activities. Last Updated on Octoby The SportsMD EditorsĪ metacarpal fracture or broken metacarpal is a fracture (break) of the tubular bones within the palm (metacarpals).
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