Radiographic evaluation of vascularity in scaphoid nonunions:A review  

作　　者：Hena S Cheema Adnan N Cheema 

机构地区：[1]Department of Diagnostic Radiology,University of Pennsylvania,Philadelphia,PA 19104,United States [2]Department of Orthopaedic Surgery,University of Pennsylvania,Philadelphia,Pennsylvania 19104,United States

出　　处：《World Journal of Orthopedics》2020年第11期475-482,共8页世界骨科杂志（英文版）

摘　　要：Scaphoid fractures,particularly those that occur more proximally,are unreliable in achieving union due to the retrograde blood supply of the scaphoid bone.Vascular compromise is associated with the development of nonunions and avascular necrosis of the proximal pole.Due to the tenuous blood supply of the scaphoid,it is imperative that the vascularity be assessed when creating diagnostic and treatment strategies.Early detection of vascular compromise via imaging may signal impending nonunion and allow clinicians to perform interventions that aid in restoring perfusion to the scaphoid.Vascular compromise in the scaphoid presents a diagnostic challenge,in part due to the non-specific findings on plain radiographs and computed tomography.Magnetic resonance imaging techniques have dramatically improved our ability to assess the blood supply to the scaphoid and improve time to intervention.This review aims to summarize these advances and highlights the importance of imaging in assessing vascular compromise in scaphoid nonunion and in reperfusion following surgical intervention.

关 键 词：VASCULARITY PERFUSION Scaphoid fracture Scaphoid nonunion Scaphoid open reduction and internal fixation Bone graft 

分 类 号：R683.41[医药卫生—骨科学]