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The Effect of Smart Ring Assisted Physiotherapeutic Intervention After TKR

The Effect of Smart Ring Assisted Physiotherapeutic Intervention on the Risk of Poor Outcome 12 Months After a Total Knee Replacement: a Randomized Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05599776
Acronym
SmarTKRing
Enrollment
338
Registered
2022-10-31
Start date
2022-11-02
Completion date
2027-12-31
Last updated
2022-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteo Arthritis Knee

Keywords

total knee replacement, wearable activity tracker, smart ring, physiotherapy

Brief summary

The goal of this randomized controlled trial is to learn about the effect of a wearable activity tracker assisted physiotherapeutic intervention on the risk of poor patient reported outcome after a primary total knee replacement. The main question it aims to answer is whether a wearable activity tracker assisted physiotherapeutic intervention and remote monitoring may help to decrease the number of the poor patient reported post-operative outcome 12 months after a primary total knee replacement. Participants will receive standard postoperative care which includes physiotherapy appointments 4 weeks and 3 months after the surgery and they will use smart rings (Oura ring) 3 months postoperatively. Patients will be remotely monitored to follow their recovery from total knee replacement surgery: the study group physiotherapists will follow the patients' activity and sleep and if necessary, make a contact with patient if there seems to low activity indicating difficulties with recovering from the surgery. Researchers will compare the intervention group to a group of participants who will receive only standard postoperative care with physiotherapy appointments 4 weeks and 3 months, to see if the use of the Oura ring may decrease the number of participants with poor patient reported post-operative outcome after total knee replacement.

Interventions

OTHERSmart ring assisted physiotherapeutic intervention

the effect of a smart ring (Oura), a wearable activity tracker assisted physiotherapeutic intervention on the risk of poor outcome measured on patient reported post-operative outcome (Oxford Knee Score) 12 months after a primary total knee replacement.

Sponsors

Coxa, Hospital for Joint Replacement
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study design is a 2 arm, 1:1 randomized, controlled, single-center trial adhering to Standard Protocol Items: Recommendation for Interventional Trials (SPIRIT) guidelines. The study will be carried out at Coxa Hospital for Joint Replacement (Tampere, Finland), a university-affiliated publicly funded orthopaedic hospital specializing in joint replacement surgery.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients undergoing primary TKA for primary osteoarthritis. * Patients able to consent and willing to comply with the study protocol. * Patients aged 18 to 70 years * Patients is able to use a smartphone and a smart ring.

Exclusion criteria

* Patients unwilling to provide informed consent * \>15 degrees varus or valgus, or \> 15 degrees fixed flexion deformity * Physical, emotional, or neurological conditions that would compromise the patient, e.g., poor compliance with postoperative rehabilitation and follow-up (e.g., drug or alcohol abuse, serious mental illness, general neurological conditions, such as Parkinson, MS, etc.) * Patients unable to attend the study physiotherapy appointments at the outpatient clinic. * Patients unable to wear Oura ring (example in case of OA or rheumatoid arthritis in the finger joints). * Patients with cardiac arrhythmia.

Design outcomes

Primary

MeasureTime frame
the proportion of patients with poor postoperative outcome12 months after total knee replacement surgery

Secondary

MeasureTime frameDescription
Forgotten Joint Score 12 (FJS-12)3 months after the surgery
active knee range of motion3 months after surgery
passive knee range of motion3 months after surgery
The patient satisfaction VAS12 months after surgery
patient accepted symptom state questions12 months after surgery
homogeneity of variance in the Oxford Knee Score12 months after the surgery
Oxford Knee Score3 months after the surgerydifference between groups
EQ-5D-5L3 months after the surgerydifference in quality of life
pain at rest using the visual analoque (VAS scale)3 months after surgery
pain while walking using the visual analoque (VAS scale)3 months after surgery

Other

MeasureTime frame
The rate of manipulation under anesthesiaduring the 12-month follow-up after surgery
complicationsduring the 12-month follow-up after surgery
the readmissions to Coxa Hospitalduring the 12-month follow-up after surgery
the visits to the emergency departmentduring the 12-month follow-up after surgery

Countries

Finland

Contacts

Primary ContactAleksi Reito, MD, PhD
aleksi.reito@pshp.fi+358444729631
Backup ContactElisa Leinonen, RN
elisa.leinonen@coxa.fi+358331178030

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026