Distal Radius Fractures (Wrist Fractures; Colles Fractures; Smith Fractures) By Danielle Campagne, MD, University of California, San Francisco Reviewed / Revised Dec 2022 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Subtle Distal Radius Fracture Distal Radius Fracture Volar splint Sugar Tong Splint How To Examine the Wrist Distal radius fractures usually result from a fall on an outstretched hand.