Fig. 5

The Max-shear stress surround the screw holes and relation to the trabecular bone shear strength. a Trabecular bone shear strength, 2.4–5.8 MPa. b Two legs standing, 600 N, 100% body weight. c Flexion motions (bending knee, sitting down, standing up), 1320–1560 N, 220–250% body weight. d One leg standing, 1620 N, 270% body weight. e Up and down the stairs, 1860–2100 N, 310–350% body weight