Dr. Muir is nationally and internationally recognized for his expertise in small animal orthopaedics and canine research, with a special emphasis on cranial cruciate ligament rupture in the dog. He has served in leadership roles on the American College of Veterinary Surgeons Credentials Committee, the Journal Advisory Board for Veterinary Surgery, and the AVMA Council on Research.
Dr. Muir obtained his veterinary degree in 1985 from Bristol University in the United Kingdom. After working in private practice in the UK, he returned to Bristol and obtained a PhD in veterinary science in 1990. He then moved to The University of Sydney to undertake training in small animal surgery, obtaining a Master's degree in 1992. He completed his surgery training at the University of Wisconsin-Madison and became a Diplomate of the American College of Veterinary Surgeons in 1995. After periods on faculty at the University of California, Davis and the Royal Veterinary College, University of London, he returned to Madison as a faculty member in 1999, where he is currently a Professor.
Dr. Muir is an orthopaedic surgeon who has authored more than 100 peer-reviewed publications. Over his professional career Dr. Muir has had a particular interest in fracture repair in dogs and cats, stress fractures in racing greyhounds, and tendon and ligament diseases of the dog, particularly cranial cruciate ligament rupture. In 2010, Dr. Muir published a new textbook entitled "The canine cranial cruciate ligament." This book is the first in a new series of specialty textbooks entitled Advances in Veterinary Surgery, which has been established by American College of Veterinary Surgeons Foundation.