Age in Humans

In: Other Topics

Submitted By drprasad03
Words 2067
Pages 9

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 ...