An interventional study of ReBK Wearable Telerehabilitation System and Standard Home-Based Rehabilitation in Total Knee Arthroplasty Recovery and Knee Osteoarthritis, sponsored by University of Chile. Not yet recruiting at 3 sites in Chile. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2026-10-15.
Sponsored by University of Chile · Not applicable, Interventional, and Treatment
This randomized controlled trial evaluates a wearable electrogoniometry-based telerehabilitation system designed to support recovery after total knee arthroplasty. Participants follow the same home-based rehabilitation exercise program and are randomly assigned to an intervention or control group. Participants in the intervention group additionally use a wearable knee device connected to a digital application that provides guidance and real-time feedback during exercise and allows remote monitoring of rehabilitation. Knee range of motion, functional performance, and isometric quadriceps strength are assessed before surgery and during the 12-week postoperative follow-up. The study compares recovery between patients using the technology-assisted rehabilitation system and those following the conventional home-based rehabilitation program.
Participants are randomly assigned to either the control group or the intervention group. Both groups follow the same standardized home-based rehabilitation exercise program after total knee arthroplasty. Participants assigned to the intervention group additionally use the wearable electrogoniometry-based telerehabilitation system during their rehabilitation exercises.
Clinical and functional outcomes are assessed throughout the 12-week postoperative follow-up. Assessments include knee range of motion, functional performance, and isometric quadriceps strength. Isometric quadriceps strength is measured using a Tindeq dynamometer and recorded in kilograms at baseline, postoperative week 1, week 4, week 8, and approximately week 12. Participants also complete self-reported assessments, and participants in the intervention group complete an additional questionnaire evaluating usability and their experience with the technology-assisted rehabilitation system.
3,391 studies on the registry are indexed under Osteoarthritis, Knee; 628 are open to participants now.
This study's planned enrollment of 80 is above the median of 69 across 2,808 interventional studies indexed under Osteoarthritis, Knee.
Browse Osteoarthritis, Knee studies →University of Chile is the lead sponsor of 194 studies on the registry; 38 are open to participants now.
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Exclusion Criteria:
Participants receive the standard postoperative rehabilitation program after total knee arthroplasty and perform the prescribed home-based exercises without using the wearable telerehabilitation system.
Behavioral: Standard Home-Based Rehabilitation
Participants receive the same standard postoperative rehabilitation program and perform the prescribed home-based exercises using the wearable knee device connected to the telerehabilitation application, which provides exercise guidance, real-time feedback, and remote monitoring.
Device: ReBK Wearable Telerehabilitation System · Behavioral: Standard Home-Based Rehabilitation
Participants use the ReBK wearable telerehabilitation system during prescribed home-based rehabilitation exercises. The system consists of a sensorized knee device connected to a digital application that provides guided exercise, real-time feedback based on knee movement, and remote monitoring of rehabilitation progress.
articipants follow the standard postoperative rehabilitation program after total knee arthroplasty and perform the prescribed home-based exercises without using the ReBK wearable telerehabilitation system.
Active Knee Flexion Range of Motion
Active knee flexion range of motion, measured in degrees using a 360° universal goniometer. Three measurements are performed and the average value is recorded.
Time frame: Preoperative baseline, weekly during postoperative weeks 1-8, and postoperative week 12.
Passive Knee Flexion Range of Motion
Passive knee flexion range of motion, measured in degrees using a 360° universal goniometer. Three measurements are performed and the average value is recorded.
Time frame: Preoperative baseline, weekly during postoperative weeks 1-8, and postoperative week 12
Active Knee Extension Range of Motion
Active knee extension range of motion, measured in degrees using a 360° universal goniometer. Three measurements are performed and the average value is recorded
Time frame: Preoperative baseline, weekly during postoperative weeks 1-8, and postoperative week 12
Passive Knee Extension Range of Motion
Passive knee extension range of motion, measured in degrees using a 360° universal goniometer. Three measurements are performed and the average value is recorded.
Time frame: Preoperative baseline, weekly during postoperative weeks 1-8, and postoperative week 12
Isometric Quadriceps Strength
Isometric quadriceps muscle strength of the operated limb, measured in kilograms using a Tindeq dynamometer
Time frame: Preoperative baseline and postoperative weeks 1, 4, 8, and approximately 12
30-Second Sit-to-Stand Test
Functional performance assessed using the 30-second Sit-to-Stand test. The number of complete sit-to-stand repetitions performed within 30 seconds is recorded
Time frame: Preoperative baseline, weekly during postoperative weeks 1-8, and postoperative week 12
Usability of the Technology-Assisted Rehabilitation System
Usability of the wearable electrogoniometry-based telerehabilitation system assessed using a structured patient questionnaire. Items were rated on a 5-point Likert scale, with higher scores indicating more favorable usability ratings.
Time frame: Postoperative week 12
Plan to share: Yes — De-identified individual participant data underlying the results reported in the published article will be made available upon reasonable request.
Time frame: ata will be available following publication of the study results, with no predetermined end date
Access criteria: De-identified data will be available to qualified researchers upon reasonable request to the corresponding author. Requests should include the purpose of the proposed research and will be evaluated by the study investigators, subject to applicable ethical and confidentiality requirements
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From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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