Adjacent Joint Kinematics after Ankle Arthrodesis in Cadaveric Gait Simulation:

Foot & Ankle Orthopaedics

Constantine A.Demetracopoulos¹ 

关键词: Ankle arthritis;    ankle arthrodesis;    hindfoot kinematics;    robotic gait simulator.;   

DOI  :  10.1177/2473011416S00049

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Ankle ArthritisIntroduction/Purpose:Ankle arthrodesis is an effective treatment for decreasing pain in patients with end-stage ankle arthritis. However, all patients with an ankle arthrodesis will eventually develop adjacent joint arthritis. The etiology of adjacent joint arthritis after ankle arthrodesis is not fully understood due to the difficulty of investigating these joints in vivo. Cadaveric simulation provides a unique capability of studying intrinsic foot and ankle joint mechanics. The objective of this study was to establish the effect of ankle arthrodesis on adjacent joint kinematics using cadaveric gait simulation. We hypothesized that adjacent joint motion of the hindfoot would increase after ankle arthrodesis.Methods:Four mid-tibia cadaveric specimens were potted and secured to a static mounting fixture about a six-degree of freedom robotic platform.(Figure 1A) The nine extrinsic ankle tendons were isolated and connected to linear actuators instrumented with load cells in series. Du...

【 授权许可】

CC BY