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Not yet recruitingNCT06248034Updated Feb 8, 2024

A Pilot Feasibility Study Comparing Smartphone Home-based Rehabilitation Program Against the Usual Hospital and Outpatient Physiotherapy Care on Clinical and Cost Effectiveness for Total Knee Replacement Patients

An interventional study of Smartphone application with tele-monitoring rehabilitation and Hospital-based rehabilitation program in Knee Arthropathy, sponsored by Singapore General Hospital. Not yet recruiting. Open to participants aged 45 Years to 95 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-02-08.

Sponsored by Singapore General Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2024, 2 years 4 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
45 Years to 95 Years
Sex
All
01

Study summary

Knee osteoarthritis (OA) is a common, chronic, and costly condition whilst total knee replacement (TKR) is a common orthopaedic surgical intervention. In Singapore, after TKR surgery, nearly all patients who are home discharged are referred to hospital-based outpatient rehabilitation. Although outpatient rehabilitation attendance is associated with better functional outcomes, access to rehabilitation care is limited as outpatient rehabilitation is costly and inconvenient for patients and their caregivers, resulting in suboptimal adherence.

A smartphone home-based rehabilitation program provides the best access to rehabilitation care and is a potential alternative for the majority of patients who do not require intensive "hands-on" rehabilitation therapy.

The primary aim of this randomized controlled trial is to compare patient functional outcomes and cost-effectiveness of this innovative smartphone home-based exercise program versus that of currently standard, hospital-based outpatient rehabilitation program among post TKR patients in the Department of Physiotherapy, Singapore General Hospital.

Read the detailed description

Thirty patients undergoing TKR for knee OA will be randomly assigned to receive either smartphone home-based rehabilitation program or hospital-based rehabilitation program following surgery for a rehabilitation period of 24 weeks. The primary patient functional outcome will be fast gait speed. Outcomes will be assessed preoperatively, at 12-week and 24-week after surgery by an assessor masked to group allocation.

If shown to be non-inferior to the standard outpatient rehabilitation, smartphone home-based exercise program can be recommended as a cost effective treatment option for patients with TKR.

02

Conditions studied

  • Knee Arthropathy

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Keywords

  • Knee Arthroplasty;
  • Orthopedic Procedures;
  • Outcome Assessments;
  • Self- Help Devices;
  • Technology;
  • Knee: Treatment Outcome
03

In context

Joint Diseases

712 studies on the registry are indexed under Joint Diseases; 127 are open to participants now.

This study's planned enrollment of 30 is below the median of 60 across 470 interventional studies indexed under Joint Diseases.

Browse Joint Diseases studies →

Lead sponsor

Singapore General Hospital is the lead sponsor of 266 studies on the registry; 57 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
45 Years to 95 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Primary unilateral total knee replacement
  2. Age >= 45 years
  3. Under the Enhanced Recovery After Surgery (ERAS) programme (discharge on post-operative day 0/1)
  4. Able to ambulate independently without an assistive device
  5. Willingness to be randomized to either smartphone home-based rehabilitation program or outpatient rehabilitation
  6. Ability to provide informed consent
  7. Able to operate phone application and use online platform
  8. Able to read and understand English or Mandarin

Exclusion criteria

Exclusion Criteria:

  1. Rheumatoid arthritis and other systemic arthritis
  2. Significant back or other non-knee pain
  3. A previous history of stroke and other major neurological conditions
  4. An intention to transfer to step-down care facilities post-operatively
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Single (Outcomes assessor)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Participants for Smartphone Home-based Rehabilitation Program (N=15)

    Study participants will be recruited from orthopaedic surgeons in Singapore General Hospital. Study participants will be recruited during their outpatient appointment session at the outpatient orthopaedic specialist clinic pre-admission clinic.

    Device: Smartphone application with tele-monitoring rehabilitation

  • Experimental
    Participants for Hospital-based rehabilitation program (N=15)

    Study participants will be recruited from orthopaedic surgeons in Singapore General Hospital. Study participants will be recruited during their outpatient appointment session at the outpatient orthopaedic specialist clinic pre-admission clinic.

    Procedure: Hospital-based rehabilitation program

Interventions

  • DeviceSmartphone application with tele-monitoring rehabilitation

    This Smartphone application includes an automated criterion-based progression based on participant's regular recorded self-measurement of knee range-of-motion and five-repetition-sit-to-stand. The rehabilitation program is designed to (i) increase knee range-of-motion, (ii) strengthen lower limb strength, (iii) improve postural balance, and (iv) improve physical function.

  • ProcedureHospital-based rehabilitation program

    Participants will be provided with the usual preoperative, inpatient physiotherapy and a physiotherapy house visit within the first 2-weeks postoperation. Participants will receive exercises, patient education, manual therapy and other modalities that were prescribed and progressed at the project physiotherapist's discretion.

06

What researchers measure

Primary outcomes

  1. Gait speed:

    This provides a performance-based measure of physical function. As participants walk a 10-metre walkway at their usual and fast pace.

    Time frame: Pre-Operative, Week 12 & Week 24

Secondary outcomes

  1. Physical function:

    The physical function will be measured using the subscale of Knee Osteoarthritis Outcome Score (KOOS) and Global Rating Scale, which are designed to evaluate the patient's opinion about their knee and associated problem.

    Time frame: Pre-Operative, Week 12 & Week 24

  2. Muscle strength:

    One-repetition Maximum(1RM) is a measure of the maximal weight a participant can lift with one repetition.

    Time frame: Pre-Operative, Week 12 & Week 24

  3. Knee pain:

    Knee pain intensity while navigating stairs, walking, standing and performing a sit-to-stand will be measured using the 10-point numeric pain rating scales (NPRS). 0 - No pain 10 - Extremely painful

    Time frame: Pre-Operative, Week 12 & Week 24

  4. Knee range-of-motion:

    A long-arm goniometer will be used to measure active-assisted knee flexion and extension range-of-motion with the participants in supine position.

    Time frame: Pre-Operative, Week 12 & Week 24

  5. Stair climb test:

    This assesses the participants' ability to ascend and descend stairs, their lower limb strength, balance and endurance. The timing required for participants to ascend one flight of stairs, turn around and descend the same flight of stairs will be taken. The stair climb test is a measure that is performed as part of standard clinical practice.

    Time frame: Pre-Operative, Week 12 & Week 24

  6. 5-repetition-sit-to-stand test:

    A test to assess participants' ability to rise from a chair and return to the sitting position. The time taken for participant to stand up and sit down five times as fast as possible from standard chair (43-47cm) without the use of their hands will be recorded. This test is a measure that is performed as part of standard clinical practice and is also a measure of lower limb strength and dynamic balance.

    Time frame: Pre-Operative, Week 12 & Week 24

  7. 30 seconds-sit-to-stand test:

    A test to assess participants' ability to rise from a chair and return to the sitting position within 30seconds from standard chair (43-47cm) without the use of their hands will be recorded.

    Time frame: Pre-Operative, Week 12 & Week 24

Other outcomes

  1. Quality of the mobile application:

    The Mobile Application Rating Scale:user version (uMARS) will be used to measure the quality of the application. This scale assesses the engagement, functionality, and aesthetics of the application. 1- Strongly disagree 5- Strongly agree

    Time frame: Week 12 & Week 24

  2. Treatment credibility:

    Treatment credibility will be measured using the treatment credibility scale. Participants will rate their confidence about the benefits of the intervention on a 11-point Likert scale, with 0 indicating "not confident" and 10 indicating "extremely confident".

    Time frame: Week 24

  3. Perceived usefulness and ease of use:

    These measures will be measured on a 10-point numeric scale. 0 - Not at all satisfied 10-Extremely satisfied

    Time frame: Week 12 & Week 24

  4. Participants satisfaction:

    Immediately post intervention at 12-week and at 24-week time-point, participants will rate their satisfaction with rehabilitation on a 20-cm visual analogue scale, with 0 cm indicating "no satisfaction" and 20 cm indicating "complete satisfaction".

    Time frame: Week 12 & Week 24

  5. EQ5D-5L:

    The EQ5D-5L is a standardised instrument to measure health related quality of life in cost-effectiveness analysis.

    Time frame: Week 12 & Week 24

  6. Adverse effects:

    The adverse effects for participants randomized to the hospital-based rehabilitation group would be, such as falls or reports of injuries during the exercises, they will be monitored by questioning participants at each outpatient visit by the treating physiotherapists. For participants randomized to the smartphone home-based group, weekly exercise outcome reports will be sent to a research coordinator. Based on regular reports of participant's knee range-of-motion, 5-repetition-sit-to-stand, ability to perform exercises and activities, the physiotherapist will provide hospital-based rehabilitation to participants who are deemed to have deviated from the expected course of recovery and are at risk for poor functional outcomes.

    Time frame: Week 24

  7. Implementation outcomes:

    The feasibility and acceptability of implementing the smartphone home exercise program will be evaluated. Specifically, the investigators will compute the proportion of eligible patients and evaluate the reasons for non-participation. Study participants will be asked to indicate, prior to surgery, their preference for the mode of treatment (smartphone home-based exercise program or hospital-based rehabilitation). Immediately post intervention at the 24-week time-point, participants will rate their satisfaction with home exercise program.

    Time frame: Week 12 & Week 24

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 8, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06248034
Lead sponsor
Singapore General Hospital
Collaborators
Rootally AI PTE LTD
Responsible party
Eleanor Chew Shuxian (Senior Principal Physiotherapist, Singapore General Hospital) — Principal investigator
First posted
Feb 8, 2024
Start date
Feb 15, 2024 (estimated)
Primary completion
Jun 1, 2024 (estimated)
Completion
Feb 20, 2025 (estimated)
Last update
Feb 8, 2024

Study contacts

Shuxian, Eleanor Chew
Contact
+65 9188 1404
Shuxian, Eleanor Chew
Contact
eleanor.chew.s.x@sgh.com.sg
+65 6326 5302

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

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