You order a wrist X-RAY for a 2 months old child. Which carpal bone are u expecting to be present
Capitate
Scaphoid
Lunate
Trapezoid
At bih, there is no calcification in the carpal bones. Although there is great individual variability, approximate ossification times are as follows. Capitate- 1-3 months Hamate- 2-4 months Triquetrum- 2-3 yrs Lunate- 2-4 yrs Scaphoid- 4-6 yrs Trapezium- 4-6 yrs Trapezoid- 4-6 yrs Pisiform- 8-12 yrs Ref: Nelson's 20th edition, page 3241
General anatomy