Type of Surgery
Last updated: 11/24/2009
Complications after shoulder replacement surgery occur less frequently than with other joint replacement surgeries. However, there are risks associated with the surgery such as infection; intra-operative fracture of the humerus or postoperative fractures;...
biceps tendon rupture; and postoperative instability and loosening of the glenoid implant. Advances in surgical techniques and prosthetic innovations are helping to significantly lower the occurrence of complications.
Knee joints or finger joints are fairly easy to understand--they facilitate back and forth movement; however, anywhere that two bones meet in the body there is some sort of joint. This animation describes the different joints in the body and what anatomical structures make up joints.
Shoulder joint replacement surgery is performed to replace a shoulder joint with artificial components (prostheses) when the joint is severely damaged by such degenerative joint diseases as arthritis, or in complex cases of upper arm bone fracture.
The shoulder is a ball-and-socket joint that allows the arms to be raised, twisted, bent, and moved forward, to the side and backward. The head of the upper arm bone (humerus) is the ball, and a circular cavity (glenoid) in the shoulder blade (scapula) is the socket. A soft-tissue rim (labrum) surrounds and deepens the socket. The head of the humerus is also covered with a smooth, tough tissue (articular cartilage); and the joint, also called the acromioclavicular (AC) joint, has a thin inner lining (synovium) that facilitates movement while surrounding muscles and tendons provide stability and support.
Orthopedic complaints are the most common reason to seek medical care.
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