True about blood supply of scaphoid?: (A) Mainly through ulnar aery, (B) Major supply from ventral surface, (C) Major supply from dorsal surface, (D) Proximal supply in antegrade fashion
Answer is C. Major blood supply (70-80%) of scaphoid comes through dorsal surface dorsal branches of radial aery.These dorsal vessels enter the scaphoid at or just distal to waist area and supply the proximal pole in retrograde fashion.