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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.
Fractures of the metacarpal neck, including so-called "boxer's fractures" (fractures of the fifth metacarpal neck) account for a substantial percentage of all hand fractures. The presentation, diagnosis, and management of metacarpal neck fractures is reviewed here.
In human anatomy, the metacarpal bones or metacarpus, also known as the "palm bones", are the appendicular bones that form the intermediate part of the hand between the phalanges and the carpal bones (wrist bones), which articulate with the forearm.
Fracturing the neck of the metacarpal that connects to your pinkie finger (your fifth metacarpal) is sometimes referred to as a boxer’s fracture. It’s the most common metacarpal fracture, making up 1 in every 4 metacarpal fractures.
Metacarpal neck fractures cause pain, swelling, tenderness, and sometimes deformity (eg, rotational deformity). Take anteroposterior, lateral, and oblique x-rays.
Metacarpal neck fractures typically result from a patient striking a solid surface with a clenched fist causing volar comminution and dorsal apex angulation (12, 13). The most frequent scenario encountered is a fracture of fifth metacarpal neck otherwise known as the “boxer’s fracture.”
Perhaps the most well-known fracture type is the so-called "boxer's fracture," implying a fracture of the neck of the fifth metacarpal with a volar displacement that presents in 20% of all hand fractures. These neck fractures often result from a combination of axial load with a slight flexion moment, which causes the neck to fracture and ...
The metacarpal bones articulate with the carpal bones with their proximal ends (bases), and with the proximal phalanges via their distal ends (heads). They are labeled with numbers 1-5 going in the radio-ulnar direction. This article will discuss the anatomy and function of the metacarpal bones.
A metacarpal fracture Is a break in one of the five metacarpal bones of either hand. Are categorized as being fractures of the head, neck, shaft, and base (from distal at the metacarpal phalangeal joint to proximal; at the wrist).
Fractures within each of the four regions of the metacarpal bone – base (Figure 2), shaft (Figure 3), neck, and head – are considered distinctly. Metacarpal base fractures usually occur as a result of significant axial load to a flexed hand as seen in clenched fist injuries.