The name for a greenstick fracture comes from the analogy of breaking a young, fresh tree branch. The broken branch snaps on one side (the outer side of the bend), while the inner side is bent, and still in continuity. Most often the greenstick fracture must be bent back into the proper position (called a "reduction") and then casted for about six weeks. Greenstick fractures can take a long time to heal because they tend to occur in the middle, slower growing parts of bone.

