Complex sentence: Schede was a pioneer of antisepsis in Germany, and in 1890 introduced a surgical procedure called thoracoplasty, which involved resection of the thorax for treatment of chronic empyema.
Split into simpler sentences: Schede was a pioneer of antisepsis in Germany. In 1890 introduced a surgical procedure called thoracoplasty, an operation involving resection of the thorax for treatment of chronic empyema.