Question

In medicolegal examination, the accused 18-year-old male claims he is 16 years old. Which joint x-ray should be done?

• A. Head & shoulder
• B. Elbow and ankle
• C. Knee and wrist
• D. Elbow & hip

Hint:

In forensic age estimation, the knee and wrist are preferred joints for x-rays due to their sensitivity to age-related ossification changes.

Answer 1

The Correct Option is C

In medicolegal examinations where age determination is necessary, assessment of bone development is critical. At 18 years of age, a male will generally have completed certain stages of ossification that can be verified by x-rays.

Bones of particular interest in these cases include those where the growth plates (epiphyseal plates) fuse last. In males, significant ossification occurs at:

• Wrist and hand - typically used for age determination from around 14 to 19 years.
• Knee - with ossification centers crucially developing around this age are typically visible in knee x-rays, particularly the distal ends of the femur and proximal ends of the tibia.

Therefore, x-rays of the knee and wrist would provide crucial information to determine whether the claimed age of 16 aligns with the physiological development indicative of an 18-year-old individual.

Ossification completion varies, however, this examination helps in giving an approximate age which can be cross-referenced with other data to determine the correct age, especially in forensic contexts.