Final answer:
The suffix 'desis' in arthodesis refers to the surgical immobilization or fusion of a joint, aiming to relieve pain or restore stability by eliminating the joint's motion.
Step-by-step explanation:
The suffix 'desis' in the word arthodesis refers to the surgical immobilization or fusion of a joint. When performing an arthodesis, an orthopedic surgeon aims to relieve pain or restore stability by fusing the bones of the joint, thus converting a diarthrosis (a joint that allows for free movement) into an immobile joint. This procedure can be necessary for various reasons, such as treating joint pain that hasn’t responded to conservative treatment, or correcting deformities.
For example, if a patient with severe arthritis has not found relief from other treatments, arthodesis can be used to reduce pain effectively by eliminating the joint's motion. By fusing the joint, the surfaces that rub together and cause pain are removed, resulting in relief from symptoms. Arthodesis is typically considered a last resort when other treatments, including joint replacement, are not advisable.