Relative structural strength of various pylon-to-socket attachment systems used in transtibial prosthetic composite sockets is quantified. Fifteen transtibial sockets are evaluated, three each of five different attachment systems. Ultimate strength and strength-to-weight ratio is determined for each system. Comparisons of the socket attachment systems are made on the basis of ultimate strength, measure-ment of deflection, testing weight of the socket, and failure mode.
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