Biomechanical evaluation of metatarsal osteotomies for Hallux Rigidus. A cadaveric testing:

Foot & Ankle Orthopaedics

EmilioWagner¹ 

关键词: hallux rigidus;    osteotomies;    treatment;    cadaver;    biomechanics;   

DOI  :  10.1177/2473011417S000399

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Basic Sciences/Biologics, Midfoot/ForefootIntroduction/Purpose:Metatarsal osteotomies for Hallux Rigidus (HR) is a treatment option when neither a cheilectomy nor an arthrodesis are indicated. Different osteotomies exist that elevate, shorten or depress the metatarsal head. No biomechanical information exists that evaluates the effect of osteotomies on hallux range of motion (ROM) and stiffness. Our objective was to evaluate, in a cadaveric model, the first metatarsophalangeal joint (MTPJ) stiffness and kinematics changes, after three different metatarsal osteotomies.Methods:8 cadaveric foot-ankle–distal tibia specimens were prepared, identifying all extensor and flexor tendons proximally. The skin and subcutaneous tissue was kept intact. Each specimen was mounted on a special frame and luminous markers were attached to the skin (Oxford Foot Model). A dead weight equal to 50% of the stance phase force was applied to each tendon, except for the Achilles tendon and the posterior tibialis. Each spec...

【 授权许可】

CC BY