Sagittal Plane Motion of the Ankle and Adjacent Joints in Total Ankle Replacement:

Foot & Ankle Orthopaedics

Travis J.Dekker¹ 

关键词: total ankle replacement;    TAR;    adjacent joint;    arthritis;    fixed-bearing prosthesis;    mobile-bearing prosthesis;   

DOI  :  10.1177/2473011416S00026

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Category:Ankle ArthritisIntroduction/Purpose:Patients with ankle arthrodesis exhibit hypermobility of adjacent joints that is hypothesized to result in accelerated arthritis. One theoretical advantage of total ankle replacement (TAR) over arthrodesis is preserved ankle motion and reduced stress on adjacent joints. We hypothesized that sagittal plane radiographic assessment will demonstrate “true” ankle motion of the prosthesis is less than the total arc of hindfoot motion secondary to contributions from adjacent joints. We aimed to compare fixed versus mobile-bearing prostheses for: (1) true ankle motion after TAR, (2) contribution of adjacent joint and midfoot motion that can lead to artificially inflated observed ankle motion (3) progression of subtalar and talonavicular joint arthritis. Previously described radiographic parameters were measured to allow for comparison of TAR motion to published ankle arthrodesis values.Methods:Patients underwent standardized weightbearing maximum dorsiflexion and plant...

【 授权许可】

CC BY