Comparison of Contact and Damage to Anatomic Structures in the Fixation of Zone II Fifth Metatarsal Fractures with an Intramedullary Screw or an Intramedullary Nail:

Foot & Ankle Orthopaedics

DavidGarras¹ 

关键词: Zone II;    Fifth metatarsal fracture;    intramedullary nail;    safe-zone;    high;    inside;    low;    outside;   

DOI  :  10.1177/2473011417S000043

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Sports, TraumaIntroduction/Purpose:Percutaneous intramedullary screw fixation of Zone II fifth metatarsal fractures has become commonplace. The potential for injury to the important surrounding anatomy has not been well documented, though some authors have reported unexplained postoperative pain and paresthesia over the lateral aspect of the foot despite hardware removal. The purpose of this study was to determine the contact and injury rate of surrounding anatomic structures with either the use of the traditional intramedullary screw (IMS) inserted “high and inside” or a novel intramedullary nail (IMN) inserted “low and outside” through a relative “safe-zone.”Methods:Zone II fifth metatarsal fractures were created in ten cadaver matched-pairs using a 1 mm thick saw through a small incision. Fractures were randomized to receive either an IMS or an IMN. The surgical technique was performed in accordance with the manufacturer’s instructions. For the IMS group, the guide pin was inserted percutaneou...

【 授权许可】

CC BY