Fig. 8

Comparisons of the average values of strain energy density under the standing condition. a PROFEMUR® Preserve. b PROFEMUR® TL. The difference between PROFEMUR® Preserve and PROFEMUR® TL is larger in strain energy density during standing than during walking, which is similar to the von Mises stress results. PROFEMUR® Preserve and PROFEMUR® TL are manufactured by MicroPort Orthopedics (Arlington, TN, USA)