Word: acetabulum
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Dates: during 1950-1959
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...socket part of the metal ball-and-socket joint. Dr. Wilson drove a long shaft (bearing the ball) into the marrow cavity and fitted a flange (just below the ball) to the head of the femur. Another flange, on the socket, he screwed to the rim of the acetabulum (the socket cavity in the pelvic bone). A collar to hold the ball in the socket completed the device (see diagram). Patient Snyder will be walking in three weeks...