Intraosseous Screw and Post versus Traditional Screw Fixation for Talonavicular Arthrodesis:

摘要

Category:Midfoot/ForefootIntroduction/Purpose:Talnonavicular (TN) arthrodesis historically has high rates of non-union and complications including prominent hardware. Traditional constructs include screw fixation and can be limited by the geometry of the midfoot. Screw and post devices utilize a post implanted into the navicular and either fixed or variable angle compression screws inserted through the post into the talus. This creates a fixed angle intraosseous construct. Reported advantages include increased axial compression strength, low profile, and greater multi-plane stability during healing than traditional methods. Few comparison studies exist in the literature. We present our experience with TN arthrodesis using a screw and post device compared to traditional fixation at an average 13.7 month follow up.Methods:A retrospective chart review identified consecutive midfoot fusion procedures at our institution performed by fellowship trained orthopaedic Foot and Ankle surgeons. Arthrodesis of the TN ...