Age in Humans

Age in Humans


AGE

From Ossification Activity of the Bones




Areas X-Rayed to Determine Age



    • Wrist & hand – children
    • Elbow, shoulder, pelvis and knee – Adult
    • Skull, vertebrae and sternum – Old person


    • AT BIRTH
Lower end of femur, ½ cm in diameter
Talus – 7th month (1U)
Calcaneum – 5th month (1U)
Cuboid – Upper end of tibia & head of humerus

    • WRIST
Number of carpal bone indicate age in years between 2-6yrs.
Pisiform ossifies – 10-12yrs





Ossification of Carpal Bones


















Hand x-ray 3mo age


One carpal bone is ossified





Hand X-ray 3 Yrs



3 carpal bones are ossified






Hand X-ray 6 Yrs



6 carpal bones are ossified


7 carpal bones are seen up to the age of 9 Yrs.





Hand X-ray 11 Yrs





Appearance of pisiform is important
A dense rim is fully developed around the primary center at the age of 11-12 Yrs.









Elbow joint X-ray 1 Yr



Appear in medial epicondyle of humerus (
4yrs (F) – 6yrs (M)

Appear in olecranon ( 8–10yrs

Lateral epicondyle of humerus united with trochlea & capitulum   ( 13-14yrs

All epiphyses at elbow (except medial epi.) join respective shaft 13-14yrs (F)
16-18yrs (M)




Elbow joint X-ray 9 Yrs




Primary center for lateral epicondyle appears at 9-12 Yrs

All the centers are open at the age of 11-12 Yrs.






Elbow joint X-ray 14 Yrs



Fusion occurs from     13 Yrs
    -   Starts from:
    -   Lateral   epicondyle   13 Yrs
    -   Radius                       14 Yrs
    -   Olecranon process   14 Yrs
    -   Medial epicondyle     15 Yrs
    -   Complete ossification occurs at the age of   16 Yrs









Wrist joint X-ray











Wrist joint X-ray 15 Yrs




Both distal ends of radius and ulna are open at the age of 15 Yrs
Fusion starts after 15 years
Complete fusion occurs at17 years









Wrist joint X-ray – Fusion




Female         Male

Radius   16-16½         17
Ulna         17               17½-18









Wrist joint X-ray – Fusion



Female         Male

Radius   16-16½...

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