A greenstick fracture is a fracture in a young, soft bone in which the bone bends and breaks. Despite the name fracture, during the majority of cases the bone is broken and hard to find in x-rays. This is owing in large part to the thick fiborous periosteum of immature bone. A person`s bones become harder (calcified) and more brittle with age and.... Found on http://en.wikipedia.org/wiki/Greenstick_fracture
The bending of a bone with incomplete fracture involving the convex side of the curve only. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973