Knee circumstances that result in pain with no injuries are Commonly attributable to problems with the connective tissues which include ligaments, tendons and cartilage. Many of these problems include rheumatoid arthritis and osteoarthritis. An MRI scan for knee pain may help identify accidents on the tender tissues of the knee https://www.theorthopaedicandpainpractice.com/how-is-knee-osteoarthritis-treated/