Metacarpal fractures typically occur because of trauma, meaning they are the result of a sudden force on the hands (such as a punch, or blow). The metacarpal bones are located at the bottom of the fingers (inside the palm to the naked eye). A sudden force on these bones will cause then to break under tension when we make a fist.
The severity of the fracture will depend on the nature of the injury but the goal of treatment is to restore mobility and function of the hand. Your doctor will use a splint to keep the hand immobile as this is crucial in the recovery process to prevent further damage, such as misalignment, while the bones are healing. Should the bones heal inappropriately, the patient has a higher risk of developing painful arthritis in the hands which may lead to further surgical intervention to reduce pain and instability.