ch 64 arthritis Flashcards
(238 cards)
which primarily affect body joints, tendons, ligaments, muscles, and bones.
rheumatic diseases
inflammation, pain, and loss of function in 1 or more of the body’s connecting or supporting structures.
rheumatic diseases are often marked by
inflammation of a joint or joints
Arthritis involves
is the most common chronic condition of the joints.
Osteoarthritis
rheumatoid arthritis (RA), fibromyalgia, systemic lupus erythematosus (SLE), and gout.
Other forms arthritis include
is a slowly progressive noninflammatory disorder of the diarthrodial (synovial) joints
Osteoarthritis (OA)
gradual loss of articular cartilage with formation of bony outgrowths (spurs or osteophytes) at the joint margins
OA involves the
indomethacin, colchicine, and corticosteroids, can stimulate collagen-digesting enzymes in joint synovium.
Drugs, such as (effects on joint cartilage)
knee OA
People with hand OA are more likely to develop
incidence of OA in aging women.
Decreased estrogen at menopause may contribute to the increased
cartilage deterioration from damage at the level of the chondrocytes
Genetic, metabolic, and local factors interact to cause
The normally smooth, white, translucent articular cartilage becomes dull, yellow, and granular as the disease progresses. Affected cartilage steadily becomes softer and less elastic. It is less able to resist wear with heavy use
change in articular cartilage
pain and stiffness of OA. Pain in later disease occurs when articular cartilage is lost, and bony joint surfaces rub each other.
changes in cartilage/ synovitis cause the early
In early stages of OA, joint pain is relieved by rest. However, the patient with advanced disease may have pain at rest or have trouble sleeping due to increased joint pain. Pain may worsen as the barometric pressure falls before the onset of severe weather.
-OA progresses, increasing pain can contribute greatly to disability and loss of function
pain described with OA in early and advanced disease
pain of OA may be referred to the groin, buttock, or outside of the thigh or knee. Sitting down becomes hard, as does rising from a chair when the hips are lower than the knees. As OA develops in the intervertebral (apophyseal) joints of the spine, local pain and stiffness are common.
sign/symp of OA
OA joint stiffness occurs after periods of rest or an unchanged position. Early morning stiffness is common. It generally resolves within 30 minutes.
-Overactivity can cause a mild joint swelling that temporarily increases stiffness. Crepitation, a grating sensation caused by loose cartilage particles in the joint cavity, can cause stiffness. Crepitation is common in patients with knee OA.
-OA usually affects joints on 1 side of the body (asymmetrically) rather than in pairs
-distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints of the fingers, and the metacarpophalangeal (MCP) joint of the thumb are often affected. Weight-bearing joints (hips, knees)
-metatarsophalangeal (MTP) joint of the foot, and the cervical and lower lumbar vertebrae are often involved
distinguishes OA from inflammatory joint disorders, such as RA.
the DIP joints due to osteophyte formation and loss of joint space
-can appear as early as age 40 and tend to be seen in family members
Heberden’s nodes occur on (deformity with OA)
on the PIP joints indicate similar disease involvement.
Bouchard’s nodes (deformity with OA)
are often red, swollen, and tender.
-usually do not cause significant loss of function, the visible deformity may bother the patient.
Heberden’s and Bouchard’s nodes
obvious joint deformity due to cartilage loss in 1 joint compartment.
-ex: bowlegged (varus deformity) from medial joint arthritis
-Lateral joint arthritis causes a knock-kneed appearance (valgus deformity)
Knee OA often leads to
1 leg may become shorter as the joint space narrows.
advanced hip OA,
Fatigue, fever, and organ involvement are not present in OA. This is an important distinction between OA and inflammatory joint disorders, such as rheumatoid arthritis.
rheumatoid arthritis. has systemic symptoms NOT OA
bone scan, CT scan, or MRI may be used to diagnose OA
-X-rays help confirm disease and stage joint damage. As OA progresses, x-rays often show joint space narrowing and increasingly dense bone. Osteophytes may be visible. However, these changes do not always reflect the degree of pain the patient has. Despite strong x-ray evidence of disease, the patient may be relatively free of symptoms. Another patient may have severe pain with only slight x-ray changes.
-No laboratory tests or biomarkers can be used to diagnose
-Synovial fluid analysis helps distinguish OA from other types of inflammatory arthritis
diagnosis of OA
, the fluid is clear yellow with little or no sign of inflammation.
In OA synovial fluid description