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Abduct - To move away from the body.
Acromioclavicular Dislocation - Disruption of shoulder ligaments of the normal joint between the acromion and the clavicle.
Adduct - To move toward the body.
Anesthesia (local) - Anesthesia confined to one part of the body.
Anesthetic (epidural) - An anesthetic injected in the fluid-filled sac (the dura) around the spine, which partially numbs the abdomen and legs.
Ankle Sprain - Stretching and slight or partial tearing of one or more ligaments in the ankle.
Ankylosis - Fusion of bones across a joint.
Anterior - The front or forward facing direction. (Your mouth is on the anterior portion of your skull.)
Antibiotic - A chemical substance produced by a microorganism which has the capacity, in dilute solutions, to inhibit the growth of or to kill infectious germs.
Anti-inflammatory - something which decreases inflammation or swelling (e.g., ice, aspirin).
Anti-inflammatory Agent (non-steroidal) - Anti-inflammatory agents that are not steroids.They have painkiller and fever reducing actions.
Anti-inflammatory Agent (steroidal) - Agents capable of suppressing or counteracting the inflammatory process by acting on body mechanisms. They are used primarily in the treatment of chronic arthritic conditions and certain soft tissue disorders associated with pain and inflammation.
Arthralgia - Pain in a joint.
Arthritis - An inflammatory condition that affects joints.
Arthrocentesis - A procedure where by a needle in introduced into a joint space for the purpose of removing joint fluid. This procedure can also be therapeutic if an anesthetic or corticosteroid medication is injected into the joint during the procedure.
Arthrodesis - The surgical immobilization of a joint (joint fusion).
Arthropathy - Any disease that affects joints.
Arthroplasty - Partial or total replacement of a joint with artificial components.
Arthroscopic Knee Repair - A fiber optic procedure, used in the surgical repair of any of several knee ligaments including the anterior cruciate ligament (ACL) or of the knee cartilages (meniscus).
Arthroscopy - Looking inside the joint with a small, lighted telescope.
Arthrotomy - A surgical incision into a joint.
Aseptic Necrosis - Condition in which poor blood supply to an area of bone leads to bone death. Also called avascular necrosis and osteonecrosis.