Orthopaedics Q&A: What causes osteoarthritis of knees?

Orthopaedics expert, Dr VV Prasad answers readers’ questions on bone health. Get your doubts cleared and see them featured on our FAQ page every Monday.
This week’s answers:

1. What causes osteoarthritis of knees?
Arthritis is a natural phenomenon. It starts mainly due to wear and tear of the cartilage that protects the bones in the joints. things which aggravate the pain are squatting down, sitting cross legged, standing for long times etc.
2. My mother, age 54, has been advised knee replacement surgery. how log will it take for her to get back to normal?
Usually we make the patient walk on 2nd or 3rd day after surgery. By 6 weeks time she should be in a position to do all household works.

3. i work at the computer 10 hrs a day. age 36, recently started developing pain in the fingers and stiffness. this goes away after a while. what may be the cause? is it tendenitis?
We call it just a strain. Dont work for long hours. Take short breaks of 5 min for every 45 min you work on your system.

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