Displacement of the thumb or finger; specifically disturbance or disarrangement of the normal relation of the bones entering into the formation of a joint.
Symptoms:
Pain in the finger or thumb
Swelling in the finger or thumb
Loss of ROM in the finger or thumb
Instability in the finger or thumb
Physical deformity- finger not in correct alignment
Causes:
Common in collision sports
Impact of the fingers or thumb against an object, person, ball, or piece of equipment