الفهرس 
Title : Volar versus dorsal vascularized distal radial graft in treatment of scaphoid fractures nonunion
ContentOnly 14 pages are availabe for public view
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Abstract
Scaphoid fracture nonunions often present a therapeutic challenge. This is because the vascular supply of the scaphoid renders the proximal pole in many of these fractures avascular. Conventional (non vascularized) bone grafting, the gold standard for the treatment of fracture nonunion, is less effective when the fracture includes a fragment with AVN. (1,2) Healing of the nonunion and revascularization and osteogenesis in the avascular (proximal) pole may be achieved by use of vascularized bone grafts. Vascularized bone grafts offer substantial advantages over conventional grafts because circulation and cell viability are maintained in the graft.(3) Revascularization and remodeling of surrounding avascular bone may be facilitated and accelerated by such a graft.(4,5) Recently, vascularized bone grafts for the scaphoid have gained increasing popularity and many methods have been described based on different pedicles aiming to achieve union in these difficult nonunions associated with proximal pole diminished vascularity.(6,7) from these, dorsal vascularized distal radial graft based on the ascending irrigating branch of the radial artery(5) or the 1,2-intercompartmental supraretinacular artery (1,2-ICSRA) and volar vascularized distal radial graft based on the radial portion of the palmer carpal arterial arch will be discussed and compared