Hand and wrist injuries commonly occur in association with vehicle accidents and often involve the driver or passenger positioning the hands to protect against impact. The result may be bruising or torn ligaments or a more serious underlying issue, such as a fractured bone.
Fractures are often identifiable by extreme pain that flares when moving the hand and attempting to form a fist with the fingers. Bruising, swelling, tenderness in the area of the injury, and a crooked finger can also indicate a fracture, which requires medical treatment to ensure proper healing.
Torn ligaments often take the form of a hand sprain, with the ligaments that connect the bones torn or stretched beyond their normal range. Torn ligaments often occur around the knuckles, and classic signs include swelling, bruising, and pain when moving the digits.
Joint dislocations are a third common type of injury associated with car accidents. This time, instead of ligaments between the knuckles becoming separated, it is the knuckle itself that is dislocated. With the middle knuckle on each hand most vulnerable, the range of motion is impacted, and numbness and difficulty moving the affected finger are common. When untreated, a dislocated joint can impact one’s ability to perform the daily tasks of living in a major way.
Steven Rigler 
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