<prompt> Scaphoid fracture which area has maximum chances of AVNNon-unionMalunion:-Proximal 13Middle 13Distal 13Scaphoid Tubercle fractrue  <response>: Scaphoid has retrograded blood supply distal to proximal hence the distal pole is highly vascularized. Due to fracture at the waist of scaphoid, blood supply to proximal pole is compromised. Hence proximal 13rd has the maximum chance to undergo AVNnon-union or malunion. 