Measuring Knee Laxity and Pivot Shift in ACL-Deficient Patients (NCT07688967) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Measuring Knee Laxity and Pivot Shift in ACL-Deficient Patients
United States25 participantsStarted 2026-07-07
Plain-language summary
The goal of this observational study is to learn whether the Robotic Knee Testing system can measure knee looseness in adults with an anterior cruciate ligament, or ACL, tear.
The main question it aims to answer is whether measurements from the Robotic Knee Testing system are related to the doctor's pivot shift exam grade.
Participants will complete one study visit before ACL reconstruction. During the visit, both knees will be tested in the Robotic Knee Testing system. Researchers may also review existing medical information and imaging.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Adults aged 18-65 years
* Confirmed ACL tear by MRI or arthroscopic diagnosis
* Able to provide informed consent
Exclusion Criteria:
* Prior major surgery on the affected knee
* Multi-ligament knee injury
* Active infection or inflammatory arthropathy
* Inability to tolerate passive motion testing
* Pregnant or planning to become pregnant during the study period
* Unable to provide informed consent
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Clinician-graded pivot shift
Timeframe: Before ACL reconstruction, during the preoperative clinical exam and/or examination under anesthesia.
2
Association Between RKT Knee Motion Measurements and Clinician-Graded Pivot Shift Grade
Timeframe: RKT testing at the preoperative study visit and pivot shift grading before ACL reconstruction