Dallas B. Phemister

Dallas Burton Phemister (; July 15, 1882 – December 28, 1951 ) was an American surgeon and researcher who gave his name to several medical terms. During his career, he was the president of the American Surgical Association and the American College of Surgeons, and was a member of the editorial board of the journal Annals of Surgery.

Career Phemister attained his MD from Rush Medical College in 1904, before conducting post-graduate study in Europe.

He was the first full-time professor and chairman of the Department of Surgery at the University of Chicago, which he led from 1925 to 1947. Early in his tenure there, he appointed Lester Dragstedt as an associate professor of surgery. He also served as a mentor for orthopedic surgeon Lent C. Johnson. That same year, he was elected as the president of the American Surgical Association.

In the 1950s, several musculoskeletal investigators expressed a desire to have a forum for presenting their work and receiving constructive criticism. This idea gained unanimous support from the American Academy of Orthopaedic Surgeons at their Annual Meeting in 1951. Most prominent among these is the Phemister graft, a technique for transplanting bone in cases of bone fractures with delayed union. The Phemister triad refers to three features typically seen in tuberculous arthritis: "juxta-articular osteopenia or osteoporosis, peripheral osseous erosions, and gradual narrowing of joint spaces... present in any large joint including the knee, hip, and shoulder."

Dallas B. Phemister Hall, a student residence building at the University of Chicago built in 1958, was named for him. It was demolished in 2000 to make room for the Interdivisional Research Building.