Verified treatment outcome for Chronic Knee Pain at Elwart Family Chiropractic in Clinton Township, Michigan.90% reduction in pain, 70% increase in knee flexion achieved over 6 Weeks. Diagnosis: M25.561 (Pain in right knee). Treatment: The patient had focused shockwave administered to the right knee at 1 time per week for 6 weeks. The patient noticed a significant improvement in 2 weeks with a pain reduction, but the patients range of motion got increasingly better after the full 6 weeks.. Patient experience: The patient works in a factory and has had chronic knee pain on the right side for the last 4 years. He states that after an hour of standing, bending or lifting at work he notices the pain gets a lot.