Biomechanical data of 6 week-old WT and CD166−/− femur from 3-point bending. (A) ultimate force, (B) stiffness, (C) toughness, and (D) IP. n=7–10 mice/group. Results are presented as the mean ± SE. *Indicates significant interaction between genotype and sex, with post-hoc analyses indicating sex-specific genotype differences (p<0.05). #Indicates significant main effect for genotype, with no significant interaction found between genotype and sex (p<0.05).