An interventional study of Wearable Device and Control in Knee Osteoarthristis, sponsored by Chinese University of Hong Kong. Not yet recruiting at 1 site in Hong Kong. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-03.
Sponsored by Chinese University of Hong Kong · Not applicable, Interventional, and Treatment
Total knee arthroplasty (TKA) is a cost effective solution for people with end-stage knee osteoarthritis. Given Hong Kong's large senior population and age as the primary risk factor for osteoarthritis, waiting times for total knee arthroplasty can reach 30 months. To manage this long wait list, patients would be enrolled to a structured exercise program with group and home based exercise. Currently limited options are available for home based exercise adherence monitoring for TKA patients on the wait-list. This study will assess the effect of wearable device with smartphone application to guide home based exercise among these wait-list patients. The main hypothesis is that the use of wearable device will decrease patient's pain level and improve their physical activity level.
All participants will consent that their anonymized data will be collected and used for scientific publications in accordance to the declaration of Helsinki. Patients on the wait-list for primary TKA at Prince of Wales Hospital in Hong Kong would be recruited and randomized to either wearable device or control group with measurements done at baseline, six weeks and six months post intervention. Control group received standard training intervention and follow up schedules, while the wearable device group would receive the wearable device and associated smartphone application along with familiarization training over the first six weeks of training.
3,292 studies on the registry are indexed under Osteoarthritis, Knee; 623 are open to participants now.
This study's planned enrollment of 106 is above the median of 68 across 2,714 interventional studies indexed under Osteoarthritis, Knee.
Browse Osteoarthritis, Knee studies →Chinese University of Hong Kong is the lead sponsor of 1,454 studies on the registry; 474 are open to participants now.
Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants received standardized group and home based intervention with similar measurement time points and exercise prescription as the intervention
Device: Control
Participants received wearable device with complementary smartphone application for exercise monitoring
Device: Wearable Device
Participants received the same group and home based exercise prescription, with the same measurement timeline as control group. Participants received wearable device with application for smartphone for home exercise monitoring and familiarization during group training sessions
Participants received home based exercise prescription only.
Knee Injury Osteoarthritis Outcome Score (KOOS)
10 minute self completed questionnaire measuring five sub-scales: Pain, other Symptoms, Function in daily living (ADL), Function in Sport and Recreation (Sport/Rec), and knee-related Quality of Life (QOL). Each sub-scale scored from 0 to 100, with 100 being no complaints.
Time frame: baseline, 6 weeks and 6 months
Knee Flexion during walking
Patients walk and have their knee flexion measured using optical motion capture, outcome in degrees.
Time frame: baseline, 6 weeks and 6 months
Hip Flexion during walking
Patients walk and have their hip flexion measured using optical motion capture, outcome in degrees.
Time frame: baseline, 6 weeks and 6 months
Knee Flexion during sit-to-stand
Patients does sit-to-stand and have their knee flexion measured using optical motion capture, outcome in degrees.
Time frame: baseline, 6 weeks and 6 months
Hip Flexion during sit-to-stand
Patients does sit-to-stand and have their hip flexion measured using optical motion capture, outcome in degrees.
Time frame: baseline, 6 weeks and 6 months
30 seconds chair to stand test
Participant sat on on a chair then execute repetitive sit-to-stand movement as much as possible within 30 seconds, outcome in number of repetitions completed.
Time frame: baseline, 6 weeks and 6 months
Functional Reach Test
Participant stand with their feet together and legs straight, then try to reach forward as far as possible, outcome in reach distance (centimeter).
Time frame: baseline, 6 weeks and 6 months
Timed Up and Go Test
Participant started in seated position, on instruction would stand up, walk forward for three meters, return back to the chair and sit down. Outcome in time (seconds) needed to complete.
Time frame: baseline, 6 weeks and 6 months
Knee Society Score (KSS)
Physician assessed questionnaire measuring patient pain, range of motion, stability, and joint alignment, scoring between 0 to 100, with 100 being perfect score.
Time frame: baseline, 6 weeks and 6 months
Knee Society Functional Score
Patient self-assessment questionnaire measuring their ability to execute physical activities, scoring between 0 to 100, with 100 being perfect score.
Time frame: baseline, 6 weeks and 6 months
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: No — only anonymized data can be shared with interested parties as this is clinically sensitive data
Start is estimated for Nov 2026; primary completion for Nov 2027, 12 months later.
Of 1,111 non-industry interventional studies with no phase under Osteoarthritis, Knee, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 36. This study's planned 12 months is below that.
Counting every sponsor, half of 1,251 studies reached it within 18 months; a quarter within 8 and three quarters within 36.
How these figures are worked out, and which studies are left out of them.
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 ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Chinese University of Hong Kong →