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Osteoarthritis of The Knee Osteoarthritis of The Knee I. Overview I. Overview Epidemiology Epidemiology Definition Definition Risk Factors Risk Factors II. Clinical Approach to Knee Pain II. Clinical Approach to Knee Pain III. Differential Diagnosis III. Differential Diagnosis IV. Diagnosis of Knee OA IV. Diagnosis of Knee OA V. Management V. Management Lifestyle Lifestyle Medical Medical Surgical Surgical Overview: Epidemiology Overview: Epidemiology • Knee OA most common cause of disability in adults Knee OA most common cause of disability in adults • Decreased work productivity, frequent sick days Decreased work productivity, frequent sick days • Highest medical expenses of all arthritis conditions Highest medical expenses of all arthritis conditions • Symptomatic Knee OA Symptomatic Knee OA 1 – More than 10 million Americans 1 More than 10 million Americans 2 – More than 11% of persons > 64yo 2 More than 11% of persons > 64yo Overview: Definition Overview: Definition Arthritis vs. Arthrosis Arthritis vs. Arthrosis Gradual loss of articular cartilage in the knee joint Gradual loss of articular cartilage in the knee joint • 3 articulations: 3 articulations: 1) Lateral condyles of the femur and tibia 1) Lateral condyles of the femur and tibia 2) Medial condyles of the femur and tibia 2) Medial condyles of the femur and tibia 3) Patellofemoral joint 3) Patellofemoral joint Damage caused by a complex interplay of joint Damage caused by a complex interplay of joint integrity, biochemical processes, genetics, and integrity, biochemical processes, genetics, and mechanical forces mechanical forces Anatomy of The Knee Anatomy of The Knee Anatomy of The Knee Anatomy of The Knee
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