Henryk Hilarowicz: The Forgotten Polish Inventor and Pioneer of the Interscalene Brachial Plexus Block.

Professor Henryk Hilarowicz was a Polish surgeon who first described the technique of brachial plexus block performed in the interscalene groove between the anterior and middle scalene muscles. The article devoted to the technique appeared in the German-language journal Zentralblatt für Chirurgie in 1925, 45 years before Alon Winnie, who is widely regarded as the originator of this method, published his paper in Anesthesia & Analgesia in 1970.