Greenstick/ Nightstick fractures are seen in -

Ans. is 'a' i.e., Children Greenstick fractureso A greenstick fracture is an incomplete transverse fracture pattern seen in childreno Greenstick fractures occur when an injuring force applied to a bone exceeds the limits of elasticity of the bone. This results in the bone's bending to the point of bony disruption and fracture on the side opposite to the applied forceo However, a green-stick fracture is an incomplete fracture, in which the compressed cortex and periosteum remain intact.o Greenstick fractures of radius-ulna are common fractures in children and often result from a fall on a outstretched hands.