Continued Metacarpal Cortical Bone Growth in Mid to Late Adolescence: A Longitudinal Study of Cortical Bone Acquisition in a Documented Sample of 16‐ to 20‐Year‐Olds

In the MC2 and MC3, cortical bone continues to grow in thickness in the years immediately following epiphyseal fusion. Skeletal maturity of these elements, as represented by fusion, does not equate to the cessation of cortical apposition. These findings contribute insight into bone development at the adolescent-adult age transition and specifically serve to refine radiogrammetry age-based inclusion or categorization criteria.