(Sarah of the Clue Crew indicates a pair of bones on the monitor.)  There are many types of bone fractures; here, the oblique fracture is closed with a diagonal break, while this type, an open fracture, breaks through the skin
Open or "Compound" (fracture) - at least some part of fractured bone(s)... [DOC] [TLE] Types of Bone Fractures | Interactive Anatomy Guide - InnerBody [PAR] A rarer type of break known as a pathologic fracture may be caused by ... also 
called open fractures, are broken bones that penetrate through the skin ...