Josep Trueta (1897–1977), a notable surgeon and researcher from Barcelona, made groundbreaking contributions to war surgery with his “closed or Spanish method” for treating complex fractures during the Spanish Civil War. After exiled in England in 1939, he became a prominent figure in Oxford, performing advanced orthopedic surgery and studying renal circulation and renal failure during the crush syndrome highlighted by his concept of “Trueta’s shunt.” Moreover, his work laid foundations in osteogenesis and bone vascularization. A committed humanist, Trueta also wrote “The Spirit of Catalonia,” reflecting his cultural heritage. Returning to Catalonia after retirement, he faced challenges in establishing his research institute. He passed away in 1977, leaving a legacy of surgical innovation and Catalan cultural advocacy.