Hello, I had been a patient of Dr. Howard Freedberg for the last two years. I have severe osteoarthritis of both knees. Due to my other medical conditions, surgery is not a good option. Dr. Freedberg has been injecting Supratz into my knees via a technique which the injection is guided by ultrasound. This has provided me with a tremendous amount of relief and has been very successful for me. I would recommend Dr. Howard Freedberg to other patients.