He subsequently completed an internship in equine medicine and surgery at the Veterinary Teaching Hospital of the University of Liège, Belgium, after which he returned to Germany working in several private equine hospitals. He then freelanced with emphasis in equine dentistry. Knut completed an equine surgical residency programme at Lyon Veterinary Teaching Hospital, France, in 2015 and continues to be a consultant veterinary surgeon for dentistry and dental and sinus surgery at the vet school and in private practice. Knut has published articles in peer-reviewed veterinary journals and he lectures courses and conferences on equine dentistry in France and internationally. His major interests in equine dentistry are preservative and minimal-invasive techniques, including endodontics and key-hole surgery.