Shoulder Impingement

Shoulder Information

To the left is an MRI of a person with CTA. As described in the section on indications for shoulder replacement , when the rotator cuff has a large tear, the should "dislocates" upward because the tendons responsible for holding the joint together have failed. The black arrow indicates the potential space between the humeral head and the acromion (a part of the bone of the scapula, or shoulder blade). The rotator cuff tendons are no longer. The humeral head now abuts on the acromion, indicated by the white arrow.

By reversing a conventional shoulder replacement, the stability of the shoulder can be restored. By having the glenoid converted to a ball, and the humeral head converted to the socket, the shoulder is held down in its proper position.

The diagram on the left shows how a standard shoulder replacement has been modified to a reverse type.

The picture on the right is an x-ray of a reverse type shoulder replacement. The glenoid, the original socket of the joint has become the ball, called a glenoshere. The humeral head has been replaced by a socket component.

You can compare this to a conventional type shoulder replacement by clicking here.

A new concept of shoulder replacements	Design evolution of the shoulder prosthesis
Shoulder replacement for CTA	The SMR for reverse shoulder replacements
X-rays of T.S.R.	The Shoulder Replacement home page
Shoulder Replacement rehabilitation
Indication for shoulder replacement
Types of shoulder replacement
General information about shoulder replacement surgery