Structures at Risk from an Intermetatarsal Screw for Lapidus Bunionectomy: A Cadaveric Study

Foot & Ankle Orthopaedics

BryanVan Dyke¹ 

关键词: Lapidus;    tarsometatarsal arthrodesis;    hallux valgus;    fusion;    bunion;   

DOI  :  10.1177/2473011418S00499

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Midfoot/ForefootIntroduction/Purpose:The Lapidus procedure is a common procedure for the treatment of hallux abducto valgus. Traditional fixation consists of two crossing screws in the sagittal plane. Despite arthrodesis of the first tarsometatarsal joint, recurrence of the hallux abducto valgus deformity remains a concern. A transverse screw spanning the base of the first metatarsal to the base of the second metatarsal has been advocated to provide transverse plane stability. However, the neurovascular bundle is located within the proximity of this screw. The literature is sparse with a standard technique to safely provide appropriate fixation. An anatomic cadaver study was undertaken to assess the risk of injury to the neurovascular bundle.Methods:Ten unmatched cadaveric limbs that had been disarticulated at the knee were used. Under fluoroscopic guidance, the guide wire to a 4.0-mm screw was driven across the base of the first metatarsal and into the second metatarsal. A 4.0-mm screw was inser...

【 授权许可】

CC BY