Best Total knee replacement surgeon in Ahmedabad Dr. Dhiraj Marothi is a highly regarded orthopedic and knee replacement surgeon based in Ahmedabad. He has over 20 years of experience in the field and has performed more than 18, 000 joint replacement surgeries. He is known for pioneering the R2R (Replacement to Resurfacing) technique, which is a minimally invasive procedure that focuses on resurfacing only the damaged part of the knee, allowing for faster recovery and reduced pain post-surgery.