Dr. le Jeune is a member of the American College of Veterinary Sports Medicine and Rehabilitation and the American College of Veterinary Surgeons and focuses on the diagnosis and treatment of lameness and various performance-related musculoskeletal injuries by an integrative approach including acupuncture and chiropractic. She is the chief of the Equine Integrative Sports Medicine Service at UC Davis. She is a certified veterinary acupuncturist, obtained certification in veterinary chiropractic by the International Veterinary Chiropractic Association and is certified in Veterinary Thermographic Imaging. She is the founder and chair of the International Task Force on Laterality in Sport horses.