Osteoarthritis information from trusted sources:
About Osteoarthritis - Symptoms - Treatment - Diagnosis - Causes ...
Nov 21, 2010 ... Osteoarthritis (OA) is the most common type of arthritis. Information on osteoarthritis symptoms, treatment, diagnosis, causes, risk factors ...
NIHSeniorHealth: Osteoarthritis - Table of contents
Oct 23, 2003 ... Osteoarthritis. Table of Contents. What Is Osteoarthritis? Causes and Risk Factors · Symptoms and Diagnosis · Treatment and Research ...
Osteoarthritis - Wikipedia, the free encyclopedia
Osteoarthritis (OA) also known as degenerative arthritis or degenerative joint disease, is a group of mechanical abnormalities involving degradation of ...
Osteoarthritis of the Hip - Your Orthopaedic Connection - AAOS
Like other joints that carry your weight, your hips may be at risk for "wear and tear" arthritis (osteoarthritis), the most common form of the disease. ...
osteoarthritis - definition of osteoarthritis in the Medical ...
Osteoarthritis (OA), which is also known as osteoarthrosis or degenerative joint disease (DJD), is a progressive disorder of the joints caused by gradual ...
Osteoarthritis
Osteoarthritis is not a single disease but rather the end result of a variety of disorders leading to the structural or functional failure of 1 or more of your joints. Osteoarthritis involves the entire joint including the nearby muscles, underlying bone, ligaments, joint lining (synovium), and the joint cover (capsule). Osteoarthritis also involves an advancing loss of cartilage. The cartilage tries to repair itself, the bone remodels, the underlying (subchondral) bone hardens, and bone cyst form. This process has several phases. The stationary phase of disease progression in osteoarthritis involves the formation of osteophytes or joint space narrowing. Osteoarthritis progresses further with obliteration of the joint space. The appearance of subchondral cysts (cysts in the bone underneath the cartilage) indicates the erosive phase of disease progression in osteoarthritis. The last phase in the disease progression involves bone repair and remodeling. Definitions Joint cartilage is a layer of tissue present at the joint surfaces that sustains joint loading and allows motion. It is gel-like, porous, and elastic. Normal cartilage provides a durable, low-friction, load-bearing surface for joints. Articular surface is the area of the joint where the ends of the bones meet, or articulate, and function like a ball bearing. Bone remodeling is a process in which damaged bone attempts to repair itself. The damage may occur from either an acute injury or as the result of chronic irritation such as that found in osteoarthritis. Collagen is the main supportive protein found in bone tendon, cartilage, skin, and connective tissue. Osteophytes are bony outgrowths or lumps, especially at the joint margins. They are thought to develop in order to offload the pressure on the joint by increasing the surface area on which your weight is distributed. Synovium is a membrane found within the joints that secretes a fluid that lubricates tissues where friction would otherwise occur. Subchondral bone is the part of bone under the cartilage.
Osteoarthritis
One in five adults has arthritis. It is estimated that one in two adults are at risk for knee osteoarthritis. Osteoarthritis is one of the most common forms ...
Osteoarthritis (Degenerative Arthritis) Causes, Diagnosis ...
Nov 29, 2010 ... Doctor to Patient: Osteoarthritis of the Hands - Causes, ... Conditions that can lead to secondary osteoarthritis include obesity, ...
Osteoarthritis
Nov 24, 2010 ... Osteoarthritis (OA) is the most common form of arthritis, affecting about 27 million people in the United States. ...
Degenerative Joint Disease
Osteoarthritis is the most common form of arthritis. It causes pain, swelling and reduced motion in your joints. It can occur in any joint, but usually it affects your hands, knees, hips or spine. Osteoarthritis breaks down the cartilage in your joints. Cartilage is the slippery tissue that covers the ends of bones in a joint. Healthy cartilage absorbs the shock of movement. When you lose cartilage, your bones rub together. Over time, this rubbing can permanently damage the joint. Factors that may cause osteoarthritis include