Austin Talley Moore (1899–1963) was an American orthopedic surgeon. He was a pioneer in the use of the femoral-head prosthesis and Vitallium
Frederick Roeck Thompson (1907–1983) was an American orthopedic surgeon. Developed a cemented vitallium prosthesis with a distinctive flared collar independent of Austin Moore.
Marius Nygaard Smith-Petersen (1886 – 1953) was a Norwegian born, American Orthopaedic surgeon. Smith-Petersen Vitallium mould arthroplasty (1948)
Sir John Charnley (1911 – 1982) was an English orthopaedic surgeon recognised as the founder of modern hip replacement. Charnley prosthesis