Osteoarthritis Concept Map

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Risk Factors

Envionmental & Behavioral

Age & Sex

Genetics Congenital Abnormalities

Obesity Occupational Repetitive Motion

Cytokine – interleukin promotes synthesis of MMPs & suppresses synthesis of collagen & proteoglycans

Hormone Disorders

Repeated Trauma

Physiological Changes

OSTEOARTHRITIS

 of matrix degrading enzymes - metalloproteinases (MMPs)

 Collagen in

 Proteoglycans

matrix

in matrix

Gout

 chondrocytes

Diabetes

 proteoglycans  collagen molecules Overwhelming  of matrix degrading enzymes - metalloproteinases Fibrillation of cartilage Lifestyle changes

Crepitus Stress fractures

Inflammation

Erosion of cartilage Cracking of cartilage

Localized inflammation Chronic inflammation

Cartilage matrix degradation

Joint swelling Chronic gout Joint tenderness

Observable erosions to articular cartilage

Difficulty walking Joint stiffness

 Range of motion Joint pain

Manifestations

Osteoarthritis Difficulty climbing stairs Osteonecrosis

Complications

Ashley Dean RNSG1263

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