Prof. Josten is the Medical President of the University Hospital Leipzig, Managing Director of the Clinic & Polyclinic for Orthopedics, Traumatology and Plastic surgery, Head of Trauma Surgery, Specialist in Orthopedics and Traumatology, Special Traumatology and Chief Emergency Physician. Besides, he also specializes in Surgical Intensive Medicine, Hand Surgery, Physical Medicine.
• 2017-2018: President of European Society for Trauma and Emergency Surgery(ESTES)
• Since 2014: Head of the department International Affairs of the German Society for Orthopedics and Traumatology
• 2014: President of the German Spine Society(DWG)
• 2012: President of the German Society for Trauma Surgery(DGU)
• Since 2012: Board member of the German Spine Society
• 2012: Vice president of the German Congress of Orthopedics and Traumatology(DKOU)