Metacarpal Fracture (Other Than Boxer’s Fracture)

Description

Metacarpal fracture is a broken bone in the middle of the hand. The metacarpal bones connect the wrist to the fingers and make up the arch of the hand. One or more metacarpal bones may be fractured, but fracture of the metacarpal of the little finger is most often near the knuckle. This is called a boxer’s fracture and is described elsewhere.

Common signs and symptoms

• Severe pain at the time of injury

• Pain, tenderness, and swelling, especially in the back of the hand; later bruising of the hand

• Visible deformity if the fracture is complete, and the bone fragments separate enough to distort normal body contours

• Numbness or paralysis from swelling in the hand, causing pressure on the blood vessels or nerves (uncommon)

Causes

• A direct blow, such as a striking blow with the fist

• Indirect stress to the hand such as that caused by twisting or violent muscle contraction (uncommon)

Factors that increase risk

• Contact sports (football, rugby, soccer)

• Sports that require hitting (boxing, martial arts)

• History of bone or joint disease, including osteoporosis

• Poor physical conditioning (strength, flexibility)

Preventive measures

• Maintain appropriate conditioning that includes hand and finger strength, flexibility, and endurance training.

• For participation contact sports, wear appropriate protective equipment for the hands, and ensure a correct fit.

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