when the epiphyseal plate is replaced by bone and becomes an epiphyseal line
Epiphyseal plate The plate is not only found in children and adolescents; in adults, who have stopped growing, the plate is replaced by an epiphyseal line. This replacement is known as epiphyseal closure or growth plate fusion. Complete fusion happens between ages 12â€“16 for girls and 14-19 for boys.[1]
Hip bone The hip bone (os coxa, innominate bone, pelvic bone[1] or coxal bone) is a large flat bone, constricted in the center and expanded above and below. In some vertebrates (including humans before puberty) it is composed of three parts: the ilium, ischium, and the pubis.