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Osteoarthritis is characterized by the breakdown of joint cartilage. Although it can occur in any joint, usually it affects the hands, knees, hips, or spine. The disease is also known as degenerative arthritis or degenerative joint disease.
What causes osteoarthritis? Primary osteoarthritis is caused by the breakdown of cartilage, a rubbery material that eases the friction in your joints. It can happen in any joint but usually affects your fingers, thumbs, spine, hips, knees, or big toes. Osteoarthritis is more common in older people.
Osteoarthritis most commonly affects the hands, lower back, neck, and weight-bearing joints such as knees, hips, and feet. Osteoarthritis affects just joints, not internal organs.
X-rays are typically used to confirm the diagnosis of osteoarthritis. X-rays can reveal assymetric joint space narrowing, osteophytes at the joint margins, joint space narrowing, and subchondral bone sclerosis. Subchondral bone is the layer of bone that is just below the cartilage.
Osteoarthritis is caused by physical use – wear and tear of a joint over time (or, occasionally, over a short time as a result of an injury). Inflammatory arthritis is a chronic autoimmune disease in which your immune system misidentifies your own body tissues as harmful germs or pathogens and attacks them.
- Stage 1 – Minor. Minor wear-and-tear in the joints. Little to no pain in the affected area.
- Stage 2 – Mild. More noticeable bone spurs. …
- Stage 3 – Moderate. Cartilage in the affected area begins to erode. …
- Stage 4 – Severe. The patient is in a lot of pain.
Osteoarthritis occurs when the cartilage that cushions the ends of bones in your joints gradually deteriorates. Cartilage is a firm, slippery tissue that enables nearly frictionless joint motion. Eventually, if the cartilage wears down completely, bone will rub on bone.
Age—The risk of developing OA increases with age. Gender—Women are more likely to develop OA than men, especially after age 50. Obesity—Extra weight puts more stress on joints, particularly weight-bearing joints like the hips and knees. This stress increases the risk of OA in that joint.
In addition to age and secondary causes such as inflammatory arthritis and prior injury/ trauma, several other risk factors increase the chance of developing osteoarthritis including obesity, diabetes, elevated cholesterol, sex, and genetics. Obesity is a risk factor for osteoarthritis, particularly of the knee.
Osteoarthritis is a disease affecting the whole joint; however, the articular cartilage (a subset of hyaline cartilage) within the joint is the most affected tissue.
Laboratory findings that further differentiate rheumatoid arthritis from osteoarthritis include the following: Systemic inflammation (elevated erythrocyte sedimentation rate [ESR] or C-reactive protein [CRP] level) Positive serologies (rheumatoid factor [RF] or anti–cyclic citrullinated peptide [anti-CCP] antibodies)
SIGNS / EXAM FINDINGS: Physical findings in osteoarthritic joints include bony enlargement, crepitus, cool effusions, and decreased range of motion. Tenderness on palpation at the joint line and pain on passive motion are also common, although not unique to OA.
Osteoarthritis is a so-called mechanical condition characterized by the gradual wearing down of cartilage in the joints. Aging is the most common risk factor for osteoarthritis. Arthritis, on the other hand, is not caused by the normal wear and tear of bones.
- Fatigue/loss of energy.
- Loss of appetite.
- Stiff muscles.
Osteoarthritis is not an autoimmune disease, and although the exact causes are not known, multiple risk factors have been identified. In a healthy joint, cartilage provides cushioning and a smooth joint surface for motion.
Osteoarthritis (OA) causes inflammation in the joints and the breakdown and gradual loss of joint cartilage. As the cartilage wears down, a person experiences pain and difficulty with movement. OA is a common joint disorder.
Stage 3 (Moderate) Stage 3 OA is classified as moderate OA. In this stage, the cartilage between bones shows obvious damage, and the space between the bones begins to narrow. People with stage 3 OA of the knee are likely to experience frequent pain when walking, running, bending, or kneeling.
- Hip Osteoarthritis (Degenerative Arthritis of the Hip) …
- Foot and Ankle Osteoarthritis. …
- Osteoarthritis of the Knee (Degenerative Arthritis of the Knee) …
- Knee Injuries and Osteoarthritis. …
- Hand Osteoarthritis (Degenerative Arthritis of the Hand) …
- Spinal Osteoarthritis (Degenerative Arthritis of the Spine)
Who gets osteoarthritis? Anyone can get osteoarthritis, but it is more common as people age. Women are more likely than men to have osteoarthritis, especially after age 50. Younger people can also develop osteoarthritis, usually because of a joint injury or problem with how the joint formed.
Cartilage loss caused by a direct injury can result from blunt trauma to the joint. This can be from a severe car accident or even a very bad fall where the joint makes direct impact with the ground. If you’re an athlete, sporting injuries are also a cause of cartilage loss.
Osteoarthritis primarily affects the weight-bearing joints, that is to say, those of the hip, knee and spine. Some non weight-bearing joints, such as those of the fingers and thumb, can also be affected.
In most cases, osteoarthritis develops slowly. At first, joints may ache after you exercise or do other physical activity. The joints most often affected by osteoarthritis are the hands, knees, hips, and spine.
- Keep a healthy body weight. Extra weight puts stress on your joints. …
- Control your blood sugar. High blood sugar levels raise your risk of getting OA. …
- Be active every day. Exercise is a good way to prevent joint problems. …
- Prevent injury to your joints. …
- Pay attention to pain.
Bouchard’s nodes are hard, bony outgrowths or gelatinous cysts on the proximal interphalangeal joints (the middle joints of fingers or toes). They are seen in osteoarthritis, where they are caused by formation of calcific spurs of the articular (joint) cartilage.
- Rapid, complete breakdown of cartilage resulting in loose tissue material in the joint (chondrolysis).
- Bone death (osteonecrosis).
- Stress fractures (hairline crack in the bone that develops gradually in response to repeated injury or stress).
- Bleeding inside the joint.
Research shows a joint injury suffered at any age increases the risk of early onset osteoarthritis. In the knee, for example, sports injuries — such anterior cruciate ligament (ACL) and meniscus (cartilage) tears — are associated with rapid or early onset post-traumatic arthritis, a form of osteoarthritis.
The wrists, elbows, metacarpophalangeal joints of the hands, and ankles are generally spared. The pain is typically slowly progressive and may vary over time.
Although there’s no blood test for osteoarthritis, certain tests can help rule out other causes of joint pain, such as rheumatoid arthritis. Joint fluid analysis. Your doctor might use a needle to draw fluid from an affected joint.
Blood tests People with rheumatoid arthritis often have an elevated erythrocyte sedimentation rate (ESR, also known as sed rate) or C-reactive protein (CRP) level, which may indicate the presence of an inflammatory process in the body.
In addition to a complete medical history and physical examination, the following are common laboratory tests: Antinuclear antibody. This test measures blood levels of various antibodies, which may be present in persons with some types of arthritis. Arthrocentesis (also called joint aspiration).
The primary symptoms of osteoarthritis (OA) are joint pain, stiffness, and locomotor restriction. Symptoms usually present in just one or a few joints in a middle-aged or older person.
There is no blood test for the diagnosis of osteoarthritis. Blood tests are performed to exclude diseases that can cause secondary osteoarthritis, as well as to exclude other arthritis conditions that can mimic osteoarthritis. X-rays of the affected joints are the main way osteoarthritis is identified.
Signs of OA include coarse crepitus, bony enlargement, reduced range of movement, and joint-line tenderness. Muscle wasting and joint deformity occur with severe OA. Painful periarticular disorders often coexist with OA. Inflammation is absent or only modest, although mild-moderate effusions are common at the knee.
- Osteoarthritis. Osteoarthritis the most common form of arthritis. …
- Rheumatoid Arthritis. Rheumatoid arthritis is an autoimmune disease, which means that the immune system attacks parts of the body—especially the joints. …
- Psoriatic Arthritis.
Rheumatoid arthritis can be one of the most painful types of arthritis; it affects joints as well as other surrounding tissues, including organs. This inflammatory, autoimmune disease attacks healthy cells by mistake, causing painful swelling in the joints, like hands, wrists and knees.