Arthritis
(from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a group of conditions involving damage to the joints of the body. Arthritis is the leading cause of disability in people older than fifty-five years.

There are different forms of arthritis; each has a different cause. The most common form of arthritis, osteoarthritis (degenerative joint disease) is a result of trauma to the joint, infection of the joint, or age. Emerging evidence suggests that abnormal anatomy might contribute to the early development of osteoarthritis. Other arthritis forms are rheumatoid arthritis and psoriatic arthritis, autoimmune diseases in which the body attacks itself. Septic arthritis is caused by joint infection. Gouty arthritis is caused by deposition of uric acid crystals in the joint, causing inflammation. There is also an uncommon form of gout caused by the formation of rhomboid crystals of calcium pyrophosphate. This gout is known as pseudogout.

Contents
1 History and physical examination
2 Types of arthritis
3 Treatment
4 History
5 References
6 External links


History and physical examination
All arthritides feature pain. Pain patterns may differ depending on the arthritides and the location. Rheumatoid arthritis is generally worse in the morning and associated with stiffness; in the early stages, patients often have no symptoms after a morning shower. In the aged and children, pain might not be the main feature; the aged patient simply moves less, the infantile patient refuses to use the affected limb.

Elements of the history of the disorder guide diagnosis. Important features are speed and time of onset, pattern of joint involvement, symmetry of symptoms, early morning stiffness, tenderness, gelling or locking with inactivity, aggravating and relieving factors, and other systemic symptoms. Physical examination may confirm the diagnosis, or may indicate systemic disease. Radiographs are often used to follow progression or assess severity in a more quantitative manner.

Extra-articular features of joint disease
cutaneous nodules
cutaneous vasculitic lesions
lymphadenopathy
oedema
ocular inflammation
urethritis
tendon sheath effusions
enlarged bursae
diarrhoea
orogenital ulceration

[1]

Blood tests and X-rays of the affected joints often are performed to make the diagnosis. Screening blood tests are indicated if certain arthritides are suspected. These might include: rheumatoid factor, antinuclear factor (ANF), extractable nuclear antigen, and specific antibodies.


Types of arthritis
Primary forms of arthritis:

Osteoarthritis
Rheumatoid arthritis
Septic arthritis
Gout and pseudogout
Juvenile idiopathic arthritis
Still's disease
Ankylosing spondylitis
Secondary to other diseases:

Lupus erythematosus
Henoch-Schönlein purpura
Psoriatic arthritis
Reactive arthritis
Haemochromatosis
Hepatitis
Wegener's granulomatosis (and many other vasculitis syndromes)
Lyme disease
Familial Mediterranean fever
Hyperimmunoglobulinemia D with recurrent fever
TNF receptor associated periodic syndrome
Inflammatory bowel disease (Including Crohn's Disease and Ulcerative Colitis)
Diseases that can mimic arthritis include:

Hypertrophic osteoarthropathy
Multiple myeloma
Osteoporosis
Fifth disease

Treatment
Treatment options vary depending on the type of arthritis and include physical and occupational therapy, lifestyle changes (including exercise and weight control), medications and dietary supplements (symptomatic or targeted at the disease process causing the arthritis). Arthroplasty (joint replacement surgery) may be required in eroding forms of arthritis.

In general, studies have shown that physical exercising of the affected joint can have noticeable improvement in terms of long-term pain relief. Furthermore, exercising of the arthritic joint is encouraged to maintain the health of the particular joint and the overall body of the person.[2]


History
While evidence of primary ankle (kaki) osteoarthritis has been discovered in dinosaurs, the first known traces of human arthritis date back as far as 4500 BC. It was noted in skeletal remains of Native Americans found in Tennessee and parts of what is now Olathe, Kansas. Evidence of arthritis has been found throughout history, from Ötzi, a mummy (circa 3000 BC) found along the border of modern Italy and Austria, to the Egyptian mummies circa 2590 BC[citation needed].


References
^ Swash, M, Glynn, M.(eds). 2007. Hutchison's Clinical Methods. Edinburgh. Saunders Elsevier.
^ 6 reasons to exercise if you have arthritis