A dislocation occurs when a bone is pulled or pushed out of place
(out of its normal relationship to the other bones that make up a joint). This
can happen in joints such as the kneecap, hip, finger, elbow, or
A dislocation may be caused by a direct blow to the joint, a fall,
or a sudden twisting movement. Everyday activities may cause this injury if a
person has unstable joints. A dislocation in a young child may be caused by
A dislocation can be a problem even if the bone pops back into
Soft tissues in or around a joint (such as
ligaments, tendons, muscles, cartilage, and the joint capsule) may stretch or
Nerves and blood vessels may be damaged by the
A piece of bone at the base of the joint may break off and
end up inside the joint or cause a fracture that extends into the joint.
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & David Messenger, MD
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