Shoulder dislocation is a very common condition and
usually secondary to an injury during sport. However it can also happen
spontaneously in certain people who has lax ligaments around the shoulder. These
two differ considerably as far as the causes and the management is concerned.
The head of the humerus can dislocate to the front, this
is an anterior dislocation. When the head dislocates to the back it is called a
posterior dislocation. Seldom it can dislocate to the lower side of the socket,
this is called an inferior dislocation.
Anterior dislocations is common in sport injuries as the
arm is pushed forward and elevated. This can also happen when the arm is forced
into elevation as in tennis players.
Posterior dislocations is common in patients who has
Epileptic seizures and also in electric shock victims. The violent muscle
contractions forces the head out to the back.
Inferior dislocations associated with military personnel
where fighter pilots are ejected from the plane and the parachute forces the
head out to the bottom and the head dislocates inferiorly.
Whatever the cause or the direction oft the dislocation
this is a severely painful condition and need urgent medical help.
Some people has a very lax ligament structure, they are
very supple and the joints are not very stable. Therefore the joint dislocate
easily. Usually the patient does something that put a fair amount of stress on
the joint and the joint dislocates, this would not have happened in a normal
person. This condition is genetic and usually familial
Some patients of this nature use this as a party trick
and voluntary dislocates their joints for the fun of it . This can cause
cartilage damage in the joint and should be discouraged.
This can also be used for gain, mimicking a dislocation
for sick leave reasons etc.
One should be very careful to try to stabilize these
joints as they usually simply re dislocate.