Shortly before the 1930 British Empire Games in Canada, Pridie finished third behind Jules Noël in the shot put event at the 1930 AAA Championships.

[1][2][3] Then at the 1930 British Empire Games he finished fourth in the discus throw event and sixth in the shot put competition.

[6][7] Two years later he won the bronze medal in the shot put contest and finished sixth in the discus throw event at the 1934 British Empire Games.

With a Fellowship from the Royal College of Surgeons of England he visited Böhler in Vienna, Watson-Jones in Liverpool and Girdlestone in Oxford.

Pridie is known for a particular cartilage repair technique where repair by fibrocartilage formation is stimulated by drilling small holes into the subchondral bone plate after surgical debridement of cartilage defects, known as the Pridie drilling technique.