Symptom: Osteoarthritis

Osteoarthritis (OA) is not a single disease but rather the end result of a variety of disorders leading to the structural or functional failure of one or more of your joints. Osteoarthritis is the most common cause of chronic joint pain, affecting over 25 million Americans. Osteoarthritis involves the entire joint, including the nearby muscles, underlying bone, ligaments, joint lining (synovium), and the joint cover (capsule).
  • Osteoarthritis also involves progressive loss of cartilage. The cartilage tries to repair itself, the bone remodels, the underlying (subchondral) bone hardens, and bone cysts form. This process has several phases.
  • The stationary phase of disease progression in osteoarthritis involves the formation of osteophytes and 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 surrounding the joints that secretes a fluid that lubricates and provides nutrition to tissues.
  • Subchondral bone is the part of bone under the cartilage.
  • Osteoarthritis is also known as degenerative joint disease.
  • Related to its effect on joints, osteoarthritis is sometimes referred to as osteoarthrosis.

    Source: http://www.emedicinehealth.com

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    1 23...Next»(Page 1 of 11)GlossaryOsteoarthritis Topic Guide Must Read Articles Related to Osteoarthritis Arthritis Arthritis is inflammation of the joints. Causes include injury, abnormal metabolism (such as gout), inheritance (such as in osteoarthritis), infections (such as...learn more >> Hip Pain There are many causes of hip pain, such as arthritis, trauma, strains, sprains, and other conditions that cause referred hip pain. Hip pain can be sharp, sudden...learn more >> Knee Pain Overview Knee pain has a wide variety of causes and treatments. Home care for knee pain involves protecting the knee from further trauma, in addition to resting, icing, ...learn more >> See the Entire Osteoarthritis Topic Guide » Patient Comments & Reviews The eMedicineHealth doctors ask about Osteoarthritis: Osteoarthritis - Experience Please describe your experience with osteoarthritis. 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    Topics Related to Osteoarthritis
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    • Knee Pain
    • Leg Pain
    • Obesity
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    • Rheumatoid Arthritis
    Arthritis Topics
    • Psoriatic Arthritis Diet
    • Rheumatoid Arthritis
    • Fibromyalgia Quiz
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    Vitamins Related To Osteoarthritis
    • Bovine Cartilage
    • Soybean Oil
    • Rutin
    • Cat's Claw
    • Cetylated Fatty Acids
    Medical Dictionary
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    Signs and Symptoms

    Welcome to WebHealthNetwork an online symptom search and symptom directory. Here you can find what is the symptom Osteoarthritis and what does it mean, you can also check what illnesses and diseases this symptom relates to.