Physical TherapyNCT05556850
Efficacy of STABL Virtual Rehabilitation
A study testing STABL Virtual Rehabilitation in people with Physical Therapy, run by NYU Langone Health at 1 site in United States.
Trial summary
The purpose of the proposed study is to evaluate the efficacy of STABL rehabilitation vs in-person rehabilitation following meniscectomy or synovectomy. STABL is a digital health platform that uses computer-vision technology to facilitate at-home post-op recovery for patients while enabling remote monitoring by their… Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Physical Therapy
- What is being tested?
- STABL Virtual Rehabilitation
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Mar 2023to 19 Dec 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Underwent meniscectomy or synovectomy surgery
- Age 18-65
- Ability to comply with a standardized postoperative protocol
- Willing and able to provide consent
Who cannot join
- Previous knee surgery
- Patients at any increased risk of falls or at increased risk from harm due to falling, including issues with vertigo, osteoporosis, or a history of past falls
- Patient otherwise deemed at increased risk from this investigational rehabilitation program by their referring surgeon or physical therapist
- Patients who are pregnant
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Efficacy of STABL Virtual Rehabilitation: A Randomized Controlled Study
The purpose of the proposed study is to evaluate the efficacy of STABL rehabilitation vs in-person rehabilitation following meniscectomy or synovectomy. STABL is a digital health platform that uses computer-vision technology to facilitate at-home post-op recovery for patients while enabling remote monitoring by their surgeon.
Read the detailed description
Patients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to virtual rehabilitation using the STABL platform or standard physical therapy over the course of 6 weeks to determine any possible difference in clinical outcomes.
- Conditions
- Physical Therapy
- Being tested
- STABL Virtual Rehabilitation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
STABL Virtual RehabilitationBehavioural
STABL is a digital health platform that uses computer-vision technology to facilitate at-home post-op recovery for patients while enabling remote monitoring by their surgeon. The platform is fully HIPAA compliant.
STABL analyzes a patient's biomechanics in real time while they perform their recovery exercises to provide them with cues to ensure the exercises are done correctly and track adherence. They then relay all the data to the patient's clinician to allow them to monitor their recovery remotely, address any adherence barriers, and mitigate readmission risks that arise in a more timely manner.
| Study group | Role | What they receive |
|---|---|---|
| Rehabilitation using STABL platform | Experimental | Patients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to virtual rehabilitation using the STABL platform Receives: Behavioral: STABL Virtual Rehabilitation |
| Rehabilitation using standard physical therapy | No intervention | Patients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to standard physical therapy. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Week 3
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 6
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 12
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Week 3
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 6
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 12
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Week 3
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 6
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 12
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Week 3
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 6
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 12
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Week 3
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, Month 6
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Measured: Baseline, , Month 12
Change in Visual Analogue Scale (VAS) Pain score
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Measured: Baseline, Week 3
Change in Visual Analogue Scale (VAS) Pain score
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Measured: Baseline, Month 6
Change in Visual Analogue Scale (VAS) Pain score
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Measured: Baseline, Month 12
Change in Active Range of Motion (AROM)
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Week 1
Change in Active Range of Motion (AROM)
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Week 3
Change in Active Range of Motion (AROM)
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Month 6
Change in Active Range of Motion (AROM)
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Month 12
Change in Passive Range of Motion (PROM)
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Week 1
Change in Passive Range of Motion (PROM)
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Week 4-6
Change in Passive Range of Motion (PROM)
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Month 6
Change in Passive Range of Motion (PROM)
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Measured: Baseline, Month 12
Change in ACL-Return to Sport (ACL-RSI) Scale Score
The ACL-RSI scale includes 12 questions on the patient's emotional well-being and confidence in his or her performance and risk appraisal. The scale, with scores ranging from 1 to 10, includes 5 questions on emotional well-being, 5 questions on confidence in physical performance, and 2 questions on the appraisal of risk. Higher scores indicate a more positive psychological response. The total score is determined by adding the values of the 12 responses and then calculating their relationship to 100 to obtain a percentage (0-100%).
Measured: Baseline, Week 3
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Sep 2022
- Study start1 Mar 2023
- Primary completion19 Dec 2025
- Study completion19 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Physical TherapyStudies of the same condition, open and under way.
- More trials run by NYU Langone HealthThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- NYU Langone Health
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Guillem Gonzalez-Lomas, Principal investigator, NYU Langone Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05556850
- Sponsor's protocol ID
- 22-00951
- Status last verified
- Feb 2026
- First submitted
- 22 Sep 2022
- Last updated
- 23 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices).
Study at a glance
From the registry record, last updated by the sponsor on 23 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Efficacy of STABL Virtual Rehabilitation: A Randomized Controlled Study
- ClinicalTrials.gov ID
- NCT05556850
- Acronym / sponsor ID
- 22-00951
- Conditions
- Physical Therapy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- NYU Langone HealthUniversity, hospital or other
- Study start
- 1 Mar 2023 (actual)
- Primary completion
- 19 Dec 2025 (actual)
- Study completion
- 19 Dec 2025 (actual)
- First posted
- 27 Sep 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the proposed study is to evaluate the efficacy of STABL rehabilitation vs in-person rehabilitation following meniscectomy or synovectomy. STABL is a digital health platform that uses computer-vision technology to facilitate at-home post-op recovery for patients while enabling remote monitoring by their surgeon.
Detailed description
Patients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to virtual rehabilitation using the STABL platform or standard physical therapy over the course of 6 weeks to determine any possible difference in clinical outcomes.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Rehabilitation using STABL platform | Experimental | Behavioral: STABL Virtual RehabilitationPatients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to virtual rehabilitation using the STABL platform |
| Rehabilitation using standard physical therapy | No intervention | –Patients undergoing minor knee procedures (defined as meniscectomy and synovectomy) will be randomized to standard physical therapy. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Underwent meniscectomy or synovectomy surgery
- Age 18-65
- Ability to comply with a standardized postoperative protocol
- Willing and able to provide consent
Key exclusion criteria (4 listed)
- Previous knee surgery
- Patients at any increased risk of falls or at increased risk from harm due to falling, including issues with vertigo, osteoporosis, or a history of past falls
- Patient otherwise deemed at increased risk from this investigational rehabilitation program by their referring surgeon or physical therapist
- Patients who are pregnant
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| STABL Virtual RehabilitationSTABL is a digital health platform that uses computer-vision technology to facilitate at-home post-op recovery for patients while enabling remote monitoring by their surgeon. The platform is fully HIPAA compliant. STABL analyzes a patient's biomechanics in real time while they perform their recovery exercises to provide them with cues to ensure the exercises are done correctly and track adherence. They then relay all the data to the patient's clinician to allow them to monitor their recovery remotely, address any adherence barriers, and mitigate readmission risks that arise in a more timely manner. | Behavioural | Rehabilitation using STABL platform |
Primary outcome
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Time frame: Baseline, Week 3
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Time frame: Baseline, Month 6
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale
Time frame: Baseline, Month 12
Measured by the Pain Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Time frame: Baseline, Week 3
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Time frame: Baseline, Month 6
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Symptoms Subscale
Time frame: Baseline, Month 12
Measured by the Symptoms Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Time frame: Baseline, Week 3
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Time frame: Baseline, Month 6
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/sports and recreational activities Subscale
Time frame: Baseline, Month 12
Measured by the function/sports and recreational activities Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Time frame: Baseline, Week 3
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Time frame: Baseline, Month 6
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Quality of Life Subscale
Time frame: Baseline, Month 12
Measured by the Quality of life Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Time frame: Baseline, Week 3
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Time frame: Baseline, Month 6
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in The Knee Injury and Osteoarthritis Outcome Score Function/daily living Subscale
Time frame: Baseline, , Month 12
Measured by the function/daily living Knee injury and osteoarthritis score subscales (KOOS subscales). The KOOS survey is comprised of 42 questions. The questions are divided into 5 sub-categories: symptoms (7 questions), pain (9 questions), function/daily living (17 questions), function/sports and recreational activities (5 questions), and quality of life (4 questions). The total range for each sub-category is 0-100, making the total range for the whole survey 0-500. The higher the score, the worse the symptoms and pain/ higher difficulty in function.
Change in Visual Analogue Scale (VAS) Pain score
Time frame: Baseline, Week 3
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Change in Visual Analogue Scale (VAS) Pain score
Time frame: Baseline, Month 6
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Change in Visual Analogue Scale (VAS) Pain score
Time frame: Baseline, Month 12
VAS is a tool widely used to measure pain. A patient is asked to indicate his/her perceived pain intensity (most commonly) along a 100 mm horizontal line, and this rating is then measured from the left edge (=VAS score). The total score range is 0 (no pain) to 10 (worst pain imaginable); the higher the score, the worse the pain.
Change in Active Range of Motion (AROM)
Time frame: Baseline, Week 1
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Active Range of Motion (AROM)
Time frame: Baseline, Week 3
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Active Range of Motion (AROM)
Time frame: Baseline, Month 6
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Active Range of Motion (AROM)
Time frame: Baseline, Month 12
AROM is measured using a goniometer (protractor that measures joint angles) to see how much the knee can bend and straighten on its own (without assistance). Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Passive Range of Motion (PROM)
Time frame: Baseline, Week 1
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Passive Range of Motion (PROM)
Time frame: Baseline, Week 4-6
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Passive Range of Motion (PROM)
Time frame: Baseline, Month 6
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in Passive Range of Motion (PROM)
Time frame: Baseline, Month 12
PROM is measured using a goniometer (protractor that measures joint angles) to see how far the knee can bend and straighten when moved by an external force. Normal ROM at the knee is considered to be 0 degrees of extension (completely straight knee joint) to 135 degrees of flexion (fully bent knee joint).
Change in ACL-Return to Sport (ACL-RSI) Scale Score
Time frame: Baseline, Week 3
The ACL-RSI scale includes 12 questions on the patient's emotional well-being and confidence in his or her performance and risk appraisal. The scale, with scores ranging from 1 to 10, includes 5 questions on emotional well-being, 5 questions on confidence in physical performance, and 2 questions on the appraisal of risk. Higher scores indicate a more positive psychological response. The total score is determined by adding the values of the 12 responses and then calculating their relationship to 100 to obtain a percentage (0-100%).
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Feb 2026.
- Individual participant dataSharing planned: Yes. Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices).
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Guillem Gonzalez-Lomas principal investigator
NYU Langone Health
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing STABL Virtual Rehabilitation in people with Physical Therapy, run by NYU Langone Health at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in The Knee Injury and Osteoarthritis Outcome Score Pain Subscale (time frame: Baseline, Week 3). The study lists 27 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Feb 2026.