A, B) Reconstructions of the ulna (A) and femur (B) at the mid-diaphysis showed a distinct difference in the shape of the ulna, but not femur, for Scx-mutant compared to WT mice at 8 wk of age. C–L) After 3-point bending tests and measurement of Imin (C, D), yield load (E, F), maximum load (G, H), PYD (I, J), and work-to-fracture (K, L), some structural properties differed between WT and Scx-mutant in both the ulna (C, E, G, I, K) and femur (D, F, H, J, L). Bars indicate significant difference between groups. P < 0.05.