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    Welcome is your online resource for learning about hip and knee surgery preparation and recovery.

    Preparing for Surgery

    Get the information you need to successfully prepare for hip or knee replacement surgery.

    Preparing for Recovery

    Learn what you can do to help ensure a healthy and timely recovery.

    Dr. Sonny Bal

    This website is provided as a courtesy of Dr. Bal, for his patients, and for anyone considering or preparing for hip or knee replacement surgery.

    Make An Appointment

    Contact Us Today. Dr. Bal practices at the Missouri Orthopaedic Institute, Missouri's largest freestanding orthopedic center.

    Greetings! I am an Orthopaedic Surgeon in the Department of Orthopaedic Surgery, at the University of Missouri. I see patients and perform surgery here in Columbia, MO. Over the last 20 years, I have performed thousands of hip and knee replacements, for patients who have visited from around the country, and overseas. My present focus is on patient-specific implant technology, particularly as an innovation to drive consistent outcomes, patient quality, and safety of surgery. Before joining the University in 1999, I was in private practice for 4 years in Blue Springs, MO. Learn more.

    In the News

    In the News – Dr. Bal’s research and expertise is frequently cited in regional and national publications. Read some of the latest articles featuring Dr. Bal.


    Hip Surgery

    Although a routine operation, hip replacement surgery still requires careful decision-making with your surgeon. Learn about the keys to a successful hip surgery and recovery.


    Knee Surgery

    Because of the advances in technology and techniques, knee replacement surgery is more effective and efficient than ever. Learn about the keys to a successful knee surgery and recovery.