He served as executive secretary and director of AOVET for 16 years. Over this time, he made a significant contribution to the adoption of osteosynthesis techniques in small animals, not least through the AOVET courses he held across the world. He developed surgical techniques and implants, such as the hook plate. He was recognized as a leading authority in his field both nationally and internationally thanks to his zeal for international cooperation, lectures, publications, and contributions to books. He co-edited two editions of the Manual of Internal Fixation in Small Animals, alongside Brinker, Hohn, Olmstead, and Sumner-Smith. This, together with his work on Orthopedic Surgery and Traumatology with Bonath, meant that he was one of the most respected experts in his field. The peak of his recognition at home came in 1985, when he was awarded the Richard Völker Medal by the German Society for Small Animal Medicine—German Veterinary Society (DGK-DVG), in the United States with professorships at the Michigan State University and the Ohio State University. As a founding member of the European Society of Veterinary Orthopaedics and Traumatology (ESVOT) Prieur served as its first secretary from 1987 to 1995, and it conferred honorary membership on him in 2000. He was also a founding member of the European College of Veterinary Surgeons (ECVS). He was also central to the creation of the Journal of Veterinary and Comparative Orthopaedics and Traumatology (VCOT), which is today one of the leading professional journals. After an international career distinguished by his vision, dedication, and skill, Prieur returned to Germany on retirement. In 1992, he acquired an agricultural estate in the Hunsrück region, where he kept almost all the animal species that can be found on a farm.
This move brought together two strands of his life—his professional achievements in the veterinary field, and the happy childhood years he spent on his grandfather's land.
In 2011, he moved to Bavaria to be closer to his son Joachim, for health reasons. One day, while out looking for his roving canine, Strupp, he had an accident. He sadly did not recover. Prieur leaves behind a legacy of outstanding commitment to the cause of excellence in the care for small animals and will be remembered by his colleagues not only for his numerous scientific achievements, but also for his open-hearted generosity of spirit to younger colleagues all over the world. He was a dedicated veterinarian and a man who understood the value of mentorship in his passion to spread the word of osteosynthesis far and wide. He is, and will be, greatly missed by all of us in this community.