Bone to bone contact knee pain indicates severe osteoarthiritic knee. When the cartilage in the knee wears away to the point of causing bone to bone contact knee pain, diagnosis will involve moving your knee to check range of motion and signs of degeneration and injury. Your doctor will also ask you question about your medical history. This can include details of your symptoms and how long you have been experiencing them. Imaging test like x-ray, MRI, will be used to confirm a diagnosis of bone to bone contact osteoarthritis. The initial treatments of osteoarthritis are weight reduction, physiotherapy and life style modification. When the conservative treatments for advanced stage of osteoarthritis have been exhausted, then knee-replacement surgery is the procedure of choice. Knee-replacement surgery or knee arthoplasty, is a surgical procedure to replace the damaged surfaces of the knee-joint to relieve pain and disability, correct mal-alignment of knee joint.