Arthritis, any of more than 100 different diseases causing pain, stiffness, and in most cases, swelling in the joints.Arthritis affects people of both sexes and of all races, socioeconomic levels, and geographic areas.Osteoarthritis is the most common type of knee arthritis.
Also called wear-and-tear arthritis or degenerative joint disease, osteoarthritis is characterized by progressive wearing away of the cartilage of the joint. As the protective cartilage is worn away by knee arthritis, bare bone is exposed within the joint.
Knee arthritis symptoms tend to progress as the condition worsens. What is interesting about knee arthritis is that symptoms do not always progress steadily with time. Often patients report good months and bad months or symptom changes with weather changes.
This is important to understand because comparing the symptoms of arthritis on one particular day may not accurately represent the overall progression of the condition.The most common symptoms of knee arthritis are:pain with activities, limited range of motion, stiffness of the knee, swelling of the joint, tenderness along the joint, a feeling the joint may "give out", deformity of the joint (knock-knees or bow-legs).
Rheumatologists, physicians who diagnose and treat arthritis and related conditions, use a variety of diagnostic techniques. The first step is a thorough history and physical examination, during which the doctor questions the patient about symptoms and medical history to learn about potential exposure to infectious agents or a family history of arthritis.
The patient is examined to determine the pattern of joints affected. With this information, rheumatologists are usually able to make a diagnosis. Laboratory tests are used to help diagnose inflammatory arthritis.
For example, a blood test called erythrocyte sedimentation rate measures how quickly red blood cells cling together and fall to the bottom of a test tube. When there is inflammation in the body, red blood cells sink faster.
This test lets physicians evaluate how severe the inflammation is. Rheumatologists also test a patient’s blood or synovial fluid for the presence of specific antibodies—disease-fighting agents activated in the body by infections.
The presence of rheumatoid factor antibodies, for example, is an indication of rheumatoid arthritis, and antinuclear antibodies can be an indication of lupus. The presence of these antibodies along with clinical symptoms help establish the diagnosis. Physicians may also elect to test for the presence of specific genes, such as the HLA-B27 gene.
The primary goal of treatment is to reduce joint pain and inflammation and to maximize joint mobility. To this end, rheumatologists work closely with patients and their families to develop a treatment regimen incorporating exercise and rest as well as pain-relieving and anti-inflammatory drugs, and in some types of arthritis, drugs that slow the progress of the disease.
Low impact, regular exercise is very important in maintaining muscle strength and joint mobility. One of the best forms of exercise for people with arthritis is swimming, an activity that lets participants use muscles with minimal joint strain.
Arthritis sufferers benefit from physical therapy programs specially tailored to their age level and degree of mobility. Stretching and hot showers before exercise and applying ice packs to muscles and joints after exercise minimize discomfort related to exercise.
Rest is another crucial element of arthritis treatment. In addition to recommending at least eight hours of sleep a night, rheumatologists may also advise patients to use a cane, splint, sling, or special footwear to rest or stabilize affected joints periodically during the day.
Almost all drugs used to treat arthritis can have side effects and may not work for all patients with arthritis. Researchers are investigating alternatives to traditional drug therapy and other treatment approaches.
If joint damage is severe, patients with arthritis may need to have surgical treatment. Total hip and total knee replacements can significantly relieve pain and improve joint function. In some cases, surgeons replace damaged or deteriorating joints with artificial stainless steel or plastic components in a procedure called arthroplasty.
Monday, January 14, 2008
Knee Arthritis And How It Affects You
Protect Your Joints And Reduce Arthritis With Glucosamine / Chondroitin Sulfate
Osteoarthritis is perhaps the fastest growing form of arthritis in the United States. According to the Arthritis Foundation, one third of all adult Americans have x-ray evidence of osteoarthritis. Last year over 7 million visits to the doctor were osteoarthritis related which is second to cardiovascular disease in America. As we age this number is going to increase unless we take steps to stop arthritis. Over the years researchers have developed medications to help relieve pain but none have actually addressed the underlying cause of joint destruction. In this article we will take a look at the characteristics of osteoarthritis and the current treatments available. Also, we will look at natural alternatives that can help improve quality of life.
Osteoarthritis is a disorder that involves certain bones and joints in the body. A joint is where two bones are connected and made up of cartilage which is surrounded by muscles and tendons. Some joints have a limited range of motion such as a rib in the rib cage and others have a much wider range of movement like hips, knees, elbows, wrists, and thumbs. The wider ranges of motion joints are called synovial joints. (1) Synovial joints have a unique structure. The bones that are connected to synovial joints are cover in a tough fibrous tissue call cartilage. This tough cartilage tissue between the bones is called the joint capsule. The joint capsule has an inner cavity which is lined with an inner membrane called the synovial membrane. With in this membrane there is fluid called synovial fluid which is a thick, slippery fluid that fills the small places in between and around the two bones connecting. The fluid is filled with a substance that lubricates the joints and eases movement.
This joint cartilage serves two purposes. First, it allows for a smooth surface to bear heavy weight and ease joint movement when in motion. Secondly, the joint cartilage absorbs shock and distributes the forces and mechanical stresses out to the bones connected to the joint.
Joint function is under continual mechanical stress while in motion and the joints ability to resist the stress reflects its health. If the mechanical stress becomes to much for the joint, some physical changes occur in the joint cartilage covering the bones. (1,2)
Cartilage is tough and some what elastic in nature comprised of water, collagen and complex proteins called proteoglycans. (3) When osteoarthritis has been diagnosed in a patient, the cartilage has started to weaken and become frayed. Over time the cartilage breaks down exposing the two bones of the joint. When two bones rub together all sorts of damage can happen. Bits of bone and cartilage break off and float around in the joint space. When the joint is bent, one usually experiences a gritty grinding feeling which is painful. Over time tiny bone spurs can grow into the cartilage and surrounding tissue causing a great deal of pain and decrease range of motion in the joint. As the arthritis progresses, the pain and discomfort will increase creating sleepless nights and miserable days.
Even though the exact cause of osteoarthritis is not known, researchers do know that it is not age related. Researchers have observed the disease having the same destructive changes in younger patients diagnosed which haven’t been observed in older individuals who don’t have the disease. (2,4,5) Researchers have observed that certain conditions do seem to trigger the disease or make it worse.
Families who have frequent occurrences of osteoarthritis tend to lean on the idea that it could be a genetic factor. Osteoarthritis of the hands is often seen as genetic. (2) People who are extremely active or have physically demanding jobs have a higher occurrence of developing osteoarthritis. Also, individuals who have certain bone disorders are prone to osteoarthritis as well. Individuals who are over weight are at risk. Because of the excess pounds, these individuals usually develop osteoarthritis in the knees and feet. Over weight individuals usually have denser bones which do not absorb as much shock as thinner bones might causing more damage to joint cartilage.
Currently there is no sure way to prevent osteoarthritis, but slowing the progression may help with some lifestyle changes. The arthritis foundation suggests individuals who are prone to osteoarthritis should maintain a healthy weight and loose weight if needed. They also suggest that these individuals should exercise on a regular basis as a preventative measure. (4) Consumption of Calcium and other vitamins such as vitamin A, C, D, and E can help as well. (6-8)
Treatment of osteoarthritis is usually focused around reducing or relieving the pain an individual experiences and maintain or improve the movement so to reduce any permanent disability. (2) Your Medical practitioner normally prescribes a non-steroidal anti-inflammatory drug (NSAIDs) such as aspirin or ibuprofen which is only effective in pain management. Sadly these NSAIDs have side effects which can be serious. NSAID induced gastrointestinal complications cause more than 100,000 hospitalizations and nearly 16,500 deaths each year in the United States. Long term use of NSAIDs can cause ulcers in the stomach and intestinal tract which product heartburn and abdominal pain. NSAIDs can interfere with blood clotting and even cause kidney damage. Acetaminophen (Tylenol) is some times prescribed for pain relief, but acetaminophen does not reduce inflammation and have the same side effects as NSAIDs plus in large doses can cause liver damage.
Newer medications released to the public are called COX-2 inhibitors which provide pain relief and anti-inflammatory effects with out the side effects of other NSAIDs. (11,12) In some cases, COX-2 inhibitors can cause stomach damage and bleeding. (13,14) All of these medications may help with the pain but does nothing to slow down or stop the osteoarthritis. This medication has no effect on the disease itself.
