OPEN The New England journal of medicine | 22 Oct 2015
The term parachute trial entered the medical lexicon to depict studies of treatments everyone already assumes to be effective. (In other words, do we need a trial to show that parachutes save the lives of persons who jump from airplanes?(1)) The parachute trial has been invoked to decry randomized trials of total joint replacement as senseless. After all, joint replacements are among the most significant advances of the 20th century; don’t we already know they are successful? Nearly 1 million elective total knee and hip replacements are performed annually in the United States; rates of total knee replacement tripled . . .
* Data courtesy of Altmetric.com