 Afterwards he became an assistant to Carl Nicoladoni (1847-1902) at the University of Graz, where in 1899 he became habilitated for surgery.In 1907 he became chief surgeon at the University of Greifswald, and in 1910 was appointed professor of surgery at the University of Königsberg.The following year he relocated to Leipzig, where he remained until his retirement in 1937.