“…Because of its anatomic proximity to the triangular fibrocartilage complex, fracture of the ulnar styloid at its base has been postulated to cause DRUJ instability [12,28,33,37]. However, well-designed studies consistently denied the association between symptomatic DRUJ instability and the ulnar styloid fracture in distal radius fractures [15,35,39,44]. Recently widening of the DRUJ gap was identified as an independent risk factor for DRUJ instability in distal radius fractures [8].…”