Sarah graduated from Massey University, New Zealand in 1995 and spent five years in mixed practice before joining the University of Liverpool where she held the position of surgical resident gaining the RCVS Certificate in Small Animal Surgery in 2003, and European College of Veterinary Surgeons diploma in 2007, becoming an EBVS® European Specialist in Small Animal Surgery.

She has a particular interest in total hip replacement (THR) and contributes data to the BVOA-UoL THR Registry; this database follows patients post-THR throughout their lifetime.

Sorrel graduated from the Royal Veterinary College (RVC), London. She then spent three years in private practice where she gained her Certificate in Small Animal Orthopaedics. She then returned to the RVC where she undertook a three-year residency in Small Animal Orthopaedics.

She gained her RCVS diploma in Small Animal Orthopaedics in 1997 and then spent six months as a lecturer at the University of Pennsylvania before returning to take up a post as University Surgeon at Cambridge University Veterinary School. She gained her ECVS diploma in Small Animal Surgery in 1999 and became a European Specialist in Small Animal Surgery. She was appointed Chair in Small Animal Orthopaedic Surgery in 2013 at the University of Bristol.

She is interested in all aspects of small animal orthopaedic surgery with particular interests in fracture repair, cruciate disease and hip replacement. She also has a particular interest in feline orthopaedics and she has published widely in this field and is frequently invited to lecture on feline orthopaedics both in this country and abroad. She has co-edited a textbook on Feline Orthopaedic Surgery and Musculoskeletal Disease and a partner textbook on Feline Soft Tissue & General Surgery.

Sorrel is heavily involved in undergraduate and post graduate veterinary surgery teaching. Clinical research interests include feline patella fractures and feline cruciate disease.  In September 2019 Sorrel became a Fellow of the Royal College of Veterinary Surgeons for her outstanding contribution to the veterinary profession. 

Dr. Denis J. Marcellin-Little graduated from the National Veterinary School of Toulouse in France, then completed an internship at Hollywood Animal Hospital in Hollywood, Florida, and a small animal surgery residency at NC State University, where he remained on the faculty from 1994 to 2017.

He is currently a professor of orthopedic surgery and department chair at the University of California, Davis.  Dr. Marcellin-Little is a diplomate of the American and European Colleges of Veterinary Surgeons and a charter diplomate of the American College of Veterinary Sports Medicine and Rehabilitation. He specializes in orthopedic surgery, orthopedic research and physical rehabilitation for companion animals.

Dr. Mertens taught and did research at Texas A&M University following his residency. During his tenure at Texas A&M, Dr. Mertens received the prestigious national Phi Zeta award for most outstanding manuscript in the basic science category in 2003. Dr. Mertens has numerous publications including articles and book chapters and has lectured extensively both nationally and internationally. In 2005, Dr. Mertens left academia to join the team at Carolina Veterinary Specialists.