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What are the Risk Factors for Osteoarthritis?

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Jeffrey Rosen, MD
Orthopaedic Surgeon
New York University Medical Center

Stanley Dysart, MD Orthopaedic Surgeon


JR: The projected cause of arthritis to society and the numbers that are increasing over the next 20 years are largely attributed to the growing and aging baby boomer population.

SD: its more dynamic than that. Yes, aging is a risk factor for arthritis but there are other risk factors that are very common such as obesity, such as trauma and there is a large genetic component to the disease. And I say disease with the thought previously there was a wear and tear process but that is not very accurate, its actually a disease process that affects all aspects of the joint and there are multiple causes.

JR: The knee joint is one of the most commonly affective joints that people come into an orthopaedics office complaining about arthritis related pain. And the primary reason is we don't give our knees a rest, we are on our knees all day, everyday.

SD: it is subject to multiple stresses during the day and also gets major stresses in the form of injury and other disease processes

JR: We think about carrying our body weight around but when you add physics equations to the problem, getting in and out of a chair, running up and down the stairs or jumping up and down on your knees, actually you are carrying multiples of your body weight around; five times, ten times your body weight depending upon the activity that you are doing. So that a weight gain of 10 pounds on the knee joint could be equivalent to 100 pounds of extra weight carried on the knees depending upon the level of activity that you are performing.

 

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