The above advice is terrific. I couldn't add anything.
Experimentally, small intestine pig mucosa (do a google search on Discovery magazine), has been used to facilitate regrowth of the tissue.
Thank you Doctors for your valuable inputs. My pain in the knee is manageable and just inconvenience while walking . I am still in my late 30's and no other complaints so far. I am keen to follow non surgical ways but Doctor here told me that if I delay in surgery,there is a huge risk of ortheritis.
its concerning me a lot as I had never been to any surgery so far in my life.