Fig. 7

Comparisons of the average values of strain energy density under the walking condition. a PROFEMUR® Preserve. b PROFEMUR® TL. The strain energy density during walking is nearly the same as the von Mises stress findings during walking. Those of zones 1 and 7 in the PROFEMUR® Reserve are very small. PROFEMUR® Preserve and PROFEMUR® TL are manufactured by MicroPort Orthopedics (Arlington, TN, USA)