My son is 26 year old. He got internal injury in right knee n there was sprain. Dr. Has given some pain killer and advise mri. Mri report shows-1. Interstitial tear/mucoid degeneration involving anterior cruciate ligament. 2. Grade 1 signal of medial n lateral collateral ligament 3. Grade 1 signal in the posterior horn of medical meniscus. 4. Moderate joint effusion. Kindly advice whether surgery is must. Or ayurvedic medicine will help. Awaiting your early reply.