No differences in objective dynamic instability during acceleration of the knee with or without subjective instability post-total knee arthroplasty.

ABSTRACT:

Introduction

Instability after total knee arthroplasty is a critical problem. The purpose of this study was to clarify the stability of implanted knees during walking by comparing differences in dynamic instability during knee acceleration between individuals with or without previously experienced subjective instability, as measured by self-reported questionnaire.

Materials and methods

We examined 92 knees with medial pivot implants. Mean patient age and follow-up duration were 78.4 years and 32.8 months, respectively. An accelerometer was used to investigate the accelerations along three axes; that is, vertical (VT), mediolateral (ML), and anteroposterior (AP) directions in 3-dimensional (3D) space. The analysis in the stance phase and gait cycle was performed by: (1) root

SUBMITTER: Soeno T 

PROVIDER: S-EPMC5856396 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature