“…Mechanical fixation by itself is probably an inadequate form of treatment of the complex disturbances of physiology that result from such injuries, as evidenced by the large variety of methods that are in use and continue to be devised (Dolley and Brewer, 1942;McKim, 1943 ;Jaslow, 1946;Blades, 1949;Cameron, O'Rourke, and Burt, 1949;Coleman and Coleman, 1950;Heroy and Eggleston, 1951 ;Proctor and London, 1955;Henry, 1957;Jacques and Munro, 1958;Sillar, 1961;Schrire, 1963;Hadfield and Watkin, 1965). Continually moving cancellous bone is difficult to fix effectively, yet only when fully effective does fixation eliminate a flail segment.…”