Los Angeles orthopaedic surgeon Ralph John Di Libero, M.D. became the 135th president of the Los Angeles County Medical Association at a Wednesday evening ceremony.

Di Libero has been a LACMA member for more than 30 years and has served as a councilor-at-large and president of the association’s central city District #1. He serves on the board of the California Orthopaedic Association and is past president of the USC-Graduate Orthopaedic Society.