Generally, all carpal bones are fully calcified around the age of 10, and bone development is often evaluated clinically by measuring or scoring the center of ossification in the wrist.
Usually, the left and right carpal bones of a child are fully calcified by the age of 10, which means that the bone growth is mature and the center of ossification appears. However, this method of evaluating bone age may not be completely accurate, and there may be large individual differences between children.
Usually the time and order of the appearance of the ossification center of the wrist in children are as follows: cephalic bone, hook bone, about 3 months; lower radial epiphysis, about 1 year old; triangular bone. about 2 years old; lunate, about 3 years old; large and small polygonal bone, 3.5 years old ~ 5 years old; navicular bone, 5 years old ~ 6 years old; lower ulnar epiphysis, 6 ~ 7 years old; bean-shaped bone, 9 ~ 10 years old.
If you have any questions about your baby’s bone age, it is recommended that you seek medical advice and consultation.