What type of fracture is known as a greenstick fracture?

• A. Complete fracture through the bone
• B. Fracture with both sides of the bone broken
• C. Partial thickness fracture where one side is interrupted
• D. Fracture involving multiple bones at once

Answer: (C)

A greenstick fracture is characterized as a partial thickness fracture where one side of the bone is broken while the other side remains intact. This type of fracture is commonly seen in children due to the flexibility of their bones, which can bend and break on one side but not completely sever through.

This concept is fundamentally different from a complete fracture, where the bone is broken all the way through, and a fracture with both sides broken, which denotes a complete separation of the bone. The option involving multiple bones also does not describe a greenstick fracture, as it specifically refers to a single bone with a unique type of partial fracture. Thus, the correct description of a greenstick fracture is that it involves only the interruption of one side of the bone.