Influence of Tibial Component Position on Altered Kinematics Following Total Ankle Arthroplasty During Simulated Gait:

Foot & Ankle Orthopaedics

GuilhermeSaito¹ 

关键词: Total Ankle Arthroplasty;    Gait Simulation;    Component Position;    Ankle Kinematics;    Ankle Arthritis;   

DOI  :  10.1177/2473011418S00105

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Ankle ArthritisIntroduction/Purpose:Correct positioning of total ankle arthroplasty (TAA) implants has been associated with superior clinical outcomes. Furthermore, biomechanical studies have demonstrated that poor alignment of the components may lead to early component wear, compromising the longevity of the prosthesis. Malpositioning of TAA implants affects ligament engagement patterns and joint contact mechanics, possibly leading to altered joint kinematics. However, the correlation between implant position and ankle joint motion is still unclear. The objective of this study was to assess the effect of tibial component position on ankle kinematics following TAA during simulated gait.Methods:Eight mid-tibia cadaveric specimens were utilized in this IRB approved study. The stance phase of gait was simulated both pre- and post-TAA in each specimen using a six-degree of freedom robotic platform. Ground reaction forces and tibial kinematic from in vivo data were replicated while physiologic tendon ...

【 授权许可】

CC BY