Novel Technique for Fixation of Medial Malleolus Fractures: A Biomechanical Study

Foot & Ankle Orthopaedics

BrettMeeks¹ 

关键词: Medial Malleolus;    Ankle Fractures;   

DOI  :  10.1177/2473011417S000291

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Ankle, TraumaIntroduction/Purpose:The traditional method for fixation of medial malleolar fractures has been with partially threaded (PT) lag screws extending beyond the physeal scar. Recent studies have shown fully threaded (FT) bicortical fixation in the tibial metaphysis provides superior biomechanical, radiographic and clinical outcomes. Risks with the bicortical technique include drill bit breakage, as well as injury to structures lateral to the tibial metaphysis if the far cortex is overdrilled. We hypothesized that far endosteal fixation, without penetration of the far cortex, would provide increased biomechanical strength compared to traditional PT lag screw fixation, while minimizing the risks associated with bicortical fixation.Methods:Twelve matched pairs of cadaver ankles were harvested and an oscillating saw was used to make an osteotomy at a 45- degree angle to the axilla. The medial malleolus was then re-approximated and held in the correct orientation using two kirschner wires. A ...

【 授权许可】

CC BY