Dr. Liddell is board certified by the American Board of Orthopedic Surgery. He is a fellow in the American Academy of Orthopedic Surgery, and is also an active member of the Arthroscopy Association of North America as well as the Society of Military Orthopedic Surgeons. He has received multiple awards for his research work in orthopedic surgery as well as several other awards for his military service as an orthopedic surgeon. While providing care for our military’s men and women in a combat zone, he was awarded the Bronze Starfor his service during Operation Iraqi Freedom.