Knee arthroplasty: a cross-sectional study assessing energy expenditure and activity

Abstract

Current evaluation questionnaires may not accurately record activity levels and TKA patients spend less time walking than the normal population. We believe the IDEEA is an effective tool for objectively measuring activity and energy expenditure following knee arthroplasty.

Clinical Evaluation of a Mobile Sensor-Based Gait Analysis Method for Outcome Measurement after Knee Arthroplasty

“…Today, several mobile gait systems are available on the market or at least described in research papers [ 8 , 11 , 16 , 23 – 25 ]. Some of the systems that are currently available on the market use only one pelvic sensor to display the spatiotemporal gait or activity parameters, and no information about knee function can be obtained with that setup [ 8 , 11 ].…”

“…These systems are of limited use for the outcome analysis of different treatment strategies or different prosthetic designs, as relevant data about joint velocity or stability cannot be evaluated. The more sophisticated systems, which have two, three, or more sensors placed on the pelvis and the extremities, are theoretically able to monitor knee range of motion and said parameters [ 16 , 23 , 25 ]. However, the accuracy of the data must be questioned.…”

“…However, the accuracy of the data must be questioned. First, to our knowledge only two systems have separate thigh and shank sensors and the ability to determine the real knee range of motion between the two units [ 23 , 25 ]. All of the other systems evaluate only the shank range of motion and use it to calculate the range of motion of the knee joint.…”

Evaluating physical function and activity in the elderly patient using wearable motion sensors

“…In one study, 75 patients indicated for THA or TKA burned the same calories/day as healthy controls and neither gender, nor hip or knee OA, had an influence. In another study, 76 energy expenditure was not different prior nor at any time point up to 12 months post-TKA, thus showing no responsiveness. Furthermore, no treatment effect has been measured six months after THA and TKA when only general, non-disease specific parameters like sedentary time were used.…”

Patient Activity After TKA Depends on Patient-specific Parameters

“…Therefore it is important to know if and how activity improves after major surgery such as a TKA. Although some studies have looked at objectively measured activity levels after knee arthroplasty [22,40,43,48,58], others have compared measurements before and after TKA [2,6,14,16,33,[51][52][53]. These studies were limited by the number of patients, short postoperative followup, and few were step based [2,51,53].…”