Ankle fusion and replacement gait similar post-surgery, but still exhibit differences versus controls regardless of footwear

Autor: Bruce J. Sangeorzan, Eric C. Whittaker, Michael E. Hahn, Christina J. Stender, Amanda E. Stone, Jane B. Shofer, William R. Ledoux
Rok vydání: 2020
Předmět:
Zdroj: Journal of orthopaedic research : official publication of the Orthopaedic Research SocietyREFERENCES. 39(11)
ISSN: 1554-527X
Popis: Persons with ankle osteoarthritis (AOA) often seek surgical intervention to alleviate pain and restore function; however, recent research has yielded no superior choice between the two primary options: fusion and replacement. One factor yet to be considered is the effect of footwear on biomechanical outcomes. Comparisons of AOA biomechanics to a normative population are also sparse. The objectives of this study were to 1) determine how footwear uniquely affected gait in persons with ankle fusion and replacement, and 2) provide context for AOA biomechanics via comparisons to a healthy adult sample. Thirty-four persons with AOA performed overground walking trials barefoot and shod prior to surgical intervention, and then received either an ankle fusion (n=14) or replacement (n=20). Two and/or three years post-surgery, patients returned for gait analysis. Nineteen controls performed the same gait procedures during a single study visit. Spatiotemporal variables and peak angles, internal moments, powers, and forces were calculated to quantify gait behavior. Overall, the two surgical groups performed similarly to each other, but demonstrated marked differences from controls both pre- and post-surgery. No significant differences were detected when examining the effect of footwear. The motion of the midfoot with respect to the hindfoot and forefoot may be instrumental in gait biomechanics following an ankle fusion or replacement, and should be considered in future investigations. This article is protected by copyright. All rights reserved.
Databáze: OpenAIRE