His publications include Medical and Surgical Observations (1744).[2]
In 1769, Henckel conducted the first caesarean section to incise the linea alba on a living woman. The child survived, though the mother later died, probably due to peritonitis. The surgery drew so much attention that King Frederick II named Henckel professor of surgery and a Court Counselor. From 1773 to 1779, Henckel served as director of the Charité.[3][4]
^Ernst Gurlt: Henckel, Joachim Friedrich. In: General German Biography (ADB). Band 11 Duncker & Humblot, Leipzig 1880, pp. 730 ff.