What Is It?
A finger dislocation is a joint injury in which the finger bones move apart or sideways so the ends of the bones are no longer aligned normally. Finger dislocations usually happen when the finger is bent backward beyond its normal limit of motion.
The bones in the fingers are known by the medical terms phalanges and metacarpal bones. Every knuckle in the hands and fingers contains a joint between two of these bones, and any of these joints can be dislocated in an injury:
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