Activity Trackers for Monitoring During Rehabilitation After Total Knee Arthroplasty

Study Overview
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Brief Summary
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This study aims to estimated the change of the steps of daily life of osteoarthritis patients before and in 6 weeks, 3 months, 6 months, 1 year after the total knee arthroplasty (TKA) through a kind of activity tracker: Fitbit ONE.

Detailed Description
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A total of 100 participants who will receive total knee arthroplasty will be recruited in this study. Fitbit ONE, the activity tracker, will be used for all of them to monitor the daily steps during the rehabilitation, to be exact, before and at 6 weeks, 3 months, 6 months, 1 year after TKA. Moreover, pain score, self reported questionnaire will also be estimated at those time points.

Official Title
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Activity Trackers for Monitoring During Rehabilitation After Total Knee Arthroplasty

Conditions
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Total Knee Arthroplasty

Intervention / Treatment
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* Device: Fitbit One, the activity tracker


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Ready to receive single-side TKA Exclusion Criteria: contraindication of surgery self-reported diseases that cause lower limb disability (for example, cerebrovascular disease especially stroke)

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: activity tracker<br>In this study, Fitbit One, the activity tracker, will be used for every participants to evaluate the daily steps before and after surgery for one year | Device: Fitbit One, the activity tracker<br>* Activity tracker, Fitbit One, will be used for a week to evaluate the steps of daily life before the surgery and at the time of follow up.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The change of steps of daily life | steps | before operation and 6 weeks, 3 months, 6 months, 1 year after operation | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The change of pain score | Visual Analogue Scale of pain is a scale to estimate pain, and its score ranges from 0 to 10. The higher the score is, the more severe pain the patient is feeling. | before operation and 6 weeks, 3 months, 6 months, 1 year after operation | 
| The change of knee joint symptoms. | The Western Ontario and McMaster Universities Osteoarthritis Index(WOMAC),and its score ranges from 0 to 96. The higher the score is, the more severe symptoms the patient is feeling. | before operation and 6 weeks, 3 months, 6 months, 1 year after operation | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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steps, Total Knee Arthroplasty, rehabilitation, activity tracker