Facts about Osteoarthritis You Should Know
Osteoarthritis Factsby R.L. Fielding What is Osteoarthritis? Osteoarthritis is a chronic condition in which tissue known
as cartilage breaks down. When this tissue deteriorates, it
leaves the bones to rub against each other, causing pain and
stiffness. If you have osteoarthritis, you’ve probably
heard something like this definition from your doctor. The
disease may also be referred to as osteoarthritis, degenerative
joint disease or degenerative arthritis.
What Causes Osteoarthritis? Like other chronic conditions, osteoarthritis has no single, specific cause. Instead, there are several factors involved in the disease, including heredity and lifestyle. It may take a combination of these factors to eventually result in osteoarthritis. Heredity - Scientists believe that in osteoarthritis, as in many other diseases and conditions, heredity may play a role in the disease. Researchers are studying several genes that may be connected to osteoarthritis. The outcomes of these studies may help predict who is most likely to get the disease. Obesity - You probably already know that being overweight puts you at risk for heart disease and certain types of cancer, but it can also have a profound effect on your joints. The reason is that your major joints, such as knees and hips, already bear the brunt of your body’s weight as you move through normal daily activities. Being overweight puts even more pressure on these joints. Injury and overuse of joints - Sometimes repetitious movements or serious injuries to joints can lead to osteoarthritis years later. Some full-time athletes, for example, may injure the same joints over and over again, causing damage to the joints, tendons and ligaments that speeds up cartilage breakdown. What are the Different Types of Arthritis? There are more than 100 different types of arthritis and related diseases. It is important to know which type of arthritis you have so you can treat it properly. If you don’t know which type you have, call your doctor or ask during your next visit. Osteoarthritis - The most common type of arthritis is osteoarthritis, or OA. OA affects about 21 million Americans. OA is sometimes called degenerative arthritis because it is caused by the breakdown of cartilage and bones, causing pain and stiffness. OA usually affects the fingers and weight-bearing joints, including the knees, hips, back and neck. It affects both men and women and usually occurs after age 45. Rheumatoid Arthritis - In rheumatoid arthritis, or RA, an abnormality in the body’s immune system causes inflammation of the joints. Inflammation begins in the joint lining, or the synovium, and over time leads to damage of both cartilage and bone. Rheumatoid arthritis often affects the same joints on both sides of the body. RA affects about 2.1 million Americans and is more common in women than in men. Fibromyalgia - Fibromyalgia is a disease that causes widespread pain and distinct tender points, which are places on the body that are highly sensitive to touch and produce pain. People with fibromyalgia usually have fatigue, disturbed sleep and stiffness. Fibromyalgia is a common condition that usually affects women and it does not cause muscle or joint damage. Lupus - Lupus is a disease that affects the skin and joints. In some people, lupus also affects the internal organs such as the kidneys, lungs or heart. Lupus affects women about eight to 10 times more often than men. Symptoms often first appear in women between ages 18 and 45. Some of the more common symptoms include a rash over the cheeks and across the bridge of the nose; scaly, disc-shaped sores on the face, neck and/or chest; abnormal sun sensitivity; kidney problems; and forms of arthritis.
Other common forms of arthritis and related conditions include: • Polymyalgia Rheumatica • Psoriatic Arthritis • Ankylosing Spondylitis • Juvenile Rheumatoid Arthritis • Gout • Vasculitis • Scleroderma How is Osteoarthritis Different? In osteoarthritis, the cartilage begins to break down, usually gradually. As the cartilage wears away, the bones become exposed and rub against each other, which leads to pain. The deterioration of cartilage also affects the shape and makeup of the whole joint, so that it no longer functions smoothly. You may notice a limp when you walk, or you may have trouble going up and down stairs. This deterioration puts additional stress on the joint as it moves. Other problems can occur inside the joint as cartilage breakdown affects the joint components. Fragments of bone or cartilage may float in the joint fluid, causing irritation and pain. Bony spurs or osteophytes can develop on the ends of the bones. Fluid inside the joint may not have enough of a substance called hyaluronan, which may affect the joint’s ability to absorb shock. And although inflammation is not a main symptom of osteoarthritis, it can occur in the joint lining in response to the breakdown of cartilage. Treatment Plan and New Developments For some people who suffer from pain associated with arthritis, their symptoms can be managed with exercise, heat/cold therapy, joint protection, assistive devices, weight control, or in some severe cases, surgery. For others, medications are needed to help manage the symptoms associated with arthritis. COX-2 inhibitors COX-2 inhibitors are the newest members of the NSAID class of medications. Available by prescription only, they became widely used in recent years to reduce joint pain and swelling. COX-2 inhibitors work by selectively blocking, or inhibiting, one of the two enzymes associated with inflammation. Some experts have hypothesized that this selective inhibition may be the reason for the negative cardiovascular effects currently associated with COX-2 inhibitors. Non-selective NSAIDs Non-selective NSAIDs were developed earlier than COX-2 inhibitors and have been widely used to relieve arthritis pain and inflammation for many years. Unlike COX-2 inhibitors, non-selective NSAIDs inhibit both major enzymes involved in the inflammatory process, COX-1 and COX-2. The non-selective NSAID category includes a number of different medications that are available in both prescription and over-the-counter (OTC) products. However, recent controversy about the safety of pain medications for arthritis has left patients and health care professionals alike uncertain about which medications are safe to use. In fact, a recent survey by the Boston-based Rippe Lifestyle Institute indicated that many people with arthritis are suffering unnecessarily because they have stopped or reduced their use of pain relievers due to confusion about which drugs are considered safe. To clarify the confusion around recent news about arthritis medications, here are some facts: On April 7, 2005, the FDA announced the following: • Bextra, a COX-2 inhibitor manufactured by Pfizer, was being voluntarily withdrawn from the market. • All prescription NSAIDs must revise their labeling to include a “black box” warning that highlights the potential increased risk for cardiovascular (CV) events as well as the potentially life threatening gastrointestinal (GI) bleeding associated with these drugs. Celebrex, the only COX-2 inhibitor remaining on the US market, was included in this directive. • All OTC NSAIDs (except aspirin) will be required to revise their labeling to include more specific information about the potential for GI and CV side effects, a stronger reminder to follow label instructions, as well as a warning about potential skin reactions. To further evaluate the potential for increased CV risk, the FDA also announced that all NSAIDs must conduct and submit to the Agency a comprehensive review and analysis of pertinent safety data from clinical trials. The FDA emphasized that when label directions are followed, OTC pain relievers such as Aleve (naproxen sodium) provide a safe and effective way to treat mild to moderate pain of minor arthritis. If patients have questions, they should consult their health care professional about which treatment option is most appropriate. More Information For more information about osteoarthritis, and living with it, visit the ALEVE website at http://www.aleve.com. ALEVE is an over-the-counter (OTC) pain reliever that provides relief for a variety of pain conditions, including minor pains associated with arthritis.
About the Author: The above information from What is Osteoarthritis?, What Causes Osteoarthritis?, What are the Different Types of Arthritis?, and How is Osteoarthritis Different? has been excerpted from The Arthritis Foundation’s Guide to Good Living with Osteoarthritis, copyright ©2000, Arthritis Foundation. For more information about this book and other resources about osteoarthritis, call (800) 283-7800. Source: www.isnare.com |
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