Hi, thanks for writing to HCM. Generally, degenerative changes in the knee are uncommon at the age of 30 years. But there is a possibility that you could have developed secondary degeneration in the joint surfaces owing to the injury. I suggest you to get an MRI scan of the injured knee which picks up all the soft tissue injuries in the knee joint. The conservative line of management of arthritic joints involves - * Physical therapy in the form of improving muscle strength and joint mobility * Weight reduction - is mainly for obese individuals as the more heavier you are , the more stress is put on the joints further worsening the condition * * USE OF HEAT & COLD : Both heat and cold can relieve pain in your joint. Heat also relieves stiffness, and cold can relieve muscle spasms and pain * Over the counter pain creams - Local massaging with creams and gels may provide temporary relief from osteoarthritis pain. Some creams numb the pain by creating a hot or cool sensation. Other creams contain medications, such as aspirin-like compounds, that are absorbed into your skin. Pain creams work best on joints that are close to the surface of your skin, such as your knees and fingers. * Glucosamine and chondroitin sufate - Daily intake of Glucosamine & chondroitin supplements over a period of 3-4 months will help in reducing the arthritic pains and thereby decreases the necessity to take daily analgesic medications. Research suggests that vitamins C and D may help protect you against the progression of osteoarthritis. Hope this information is helpful. Good day