A joint is a part of the body where two or more bones come together. Dislocations occur when the ends of the joint are forced from their normal position, which temporarily immobilizes and deforms the joint.
Fractures are a partial or complete break in your hand or wrist can occur at any spot in the bone, as opposed to dislocations that only happen in the joint. Fractures typically result from an injury or trauma but can also be a result of bone diseases like osteoporosis.
A sprain is the stretching or tearing of a ligament in the hand or wrist.