Just what is dislocation of the shoulder? The causes of a shoulder dislocation?

Among the most moveable joints in the human body is by far the shoulder joint, this joint permits the arm to move in a vast array of diverse directions. This ability to move tends to make the joint inherently unstable and also makes the shoulder one of the most often dislocated joint within the body. The head of the humerus (upper arm bone) sits within the glenoid fossa, an extension of the scapula, or shoulder blade. The glenoid fossa of the scapula is a shallow groove that the arm bone sits in, and makes the shoulder joint. This fossa is quite shallow so the arm bone does not have a lot of support when it sits within this fossa. Because of this the shoulder joint needs various other neighboring structures like ligaments to help keep its stability. Inside the shoulder joint there's a dense ring of fibrous cartilage, this cartilage makes a deeper concave recepticle for the head of the humerus bone to lay within. The capsule tissue that encompasses the joint additionally assists maintain stability. The rotator cuff muscles and their tendons are incredibly robust and encompass the shoulder joint, giving one more layer of stability and support for the shoulder joint. href="http://www.sportinjuries.ca/bone-injuries/dislocated-shoulder/" dislocated shoulder   Dislocated shoulder comes about because the head of the humerus gets dislodged from its usual physiological resting spot within the glenoid fossa of the scapula. The shoulder can be dislocated in a number of directions, and a dislocated shoulder is referred to by the location where the humeral head winds up after it has been dislocated. In the majority of shoulder dislocations the head of the humerus gets dislodged in direction of the anterior aspect of the shoulder joint, thus causing what is known as an "anterior dislocation". Dislocated shoulders where the humeral head is shifted in direction of the back of the shoulder joint is called a posterior dislocation.