Not yet recruitingNAINTERVENTIONAL

Minimally Invasive Three-dimensional Knee Kinematic Assessment and Surgical Guidance Using Ultrasonic Rigid Registration

This study is looking at a new, less invasive way to get a very precise picture of how your knee moves. It also aims to give surgeons better guidance during knee operations. The goal is to improve the success of common knee surgeries like knee replacement, high tibial osteotomy (which reshapes the shin bone), and ACL reconstruction. Researchers want to see if this new system can accurately measure knee movement, if these measurements are reliable, and if using the system leads to better results for patients compared to traditional surgery methods. Ultimately, the hope is to make knee surgeries more effective and help patients recover better.

At a glance

Status

Not yet recruiting

Phase

Sponsor

Centre hospitalier de l'Université de Montréal (CHUM)

Enrolment target

Start

01 Dec 2025

Estimated completion

01 Dec 2026

Knee Osteoarthritis Knee Instability 3D Knee Kinematics Precision of Surgical Actions Clinical Outcomes

What is this study about?

Imagine your knee joint like a perfectly tuned machine. When you have conditions like knee arthritis or instability, this machine might not be moving as smoothly or as it should. Current methods to understand these movements and guide surgeons during operations aren't always as precise as doctors would like.

This study is testing a brand-new tool that aims to change that. It uses advanced imaging and a gentle, minimally invasive way to attach small markers to your bone. This allows doctors to get a very detailed and accurate 3D map of how your knee moves. Think of it like a highly sophisticated GPS for your knee, helping to pinpoint exactly what's happening and how best to fix it.

The main idea is that if surgeons have this super-accurate information and guidance during an operation, they can make more precise adjustments. This could lead to better alignment of the knee, smoother movement after surgery, and ultimately, a better recovery and longer-lasting results for patients needing knee replacement, ACL repair, or other knee procedures.

Key takeaways

Tests a new tool for precise knee movement measurement.
Aims to improve accuracy during knee surgery.
Involves common knee operations like knee replacement and ACL repair.
Compares guided surgery results to traditional methods.
Designed to be minimally invasive.

Who may be eligible?

To be able to join this study, you would need to be an adult (18 years or older) who is planning to have a knee operation. This includes common surgeries like a full knee replacement, a high tibial osteotomy (a type of bone reshaping surgery for the shin bone), or an ACL (anterior cruciate ligament) reconstruction, which helps stabilise the knee after an injury.

However, some conditions would mean you couldn't join. For example, if you have an active infection, or if the shape or alignment of your lower leg bones is very unusual. Also, if your knee is unstable for reasons other than a torn ACL (if you're having an ACL repair), or if you can't straighten your knee fully (a bend of 10 degrees or more), or if you can't bend your knee enough (less than 120 degrees of bend), then you wouldn't be able to take part in this particular study.

Could this study suit you?

Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.

Are you 18 years old or older?
Are you scheduled for a knee replacement, high tibial osteotomy, or ACL repair?
Do you have a general good health otherwise, without active infections?
Can you bend your knee more than 120 degrees and straighten it almost completely (less than 10 degrees bend)?
Is your leg shape generally typical, and is your knee instability only due to an ACL tear (if you're having an ACL repair)?

Answer every question to see your result.

What does participation involve?

The description does not provide details on specific visits, assessments, medication, or the total duration of participation. It states that the new system would be integrated into the surgical flow of three knee procedures. This suggests that participation would primarily involve the use of the new measurement and guidance system during your planned knee surgery and potentially follow-up assessments to compare your results with those who had traditional surgery. You would undergo repeated measurements of your knee alignment and movement.

Potential risks and benefits

Potential benefits of taking part could include receiving surgery guided by a cutting-edge system designed to improve precision, which might lead to better long-term results for your knee. As with any new medical approach, there might be unknown risks, though the system is designed to be minimally invasive. You would be fully informed of any known risks and benefits before deciding to participate, and importantly, you have the right to withdraw from the study at any time without affecting your future medical care.

Locations (1)

Centre Hospitalier de l'Université de Montréal (CHUM)
Verified postcode
Montreal, Canada

Common questions

What kind of knee operations is this study for?

This study is for patients having a full knee replacement, a high tibial osteotomy (a bone-reshaping surgery), or an ACL reconstruction (for a torn ligament).

What does 'minimally invasive' mean in this study?

It means the new tool attaches small markers to your bone in a way that causes less disturbance than traditional methods, allowing for precise measurements.

Will this new system definitely improve my surgery results?

The study aims to find out if the system improves results compared to traditional surgery, but there's no guarantee yet.

Can I join if my knee is very stiff?

Unfortunately, if you can't straighten your knee fully or bend it past 120 degrees, you wouldn't be able to join this study.

What if I change my mind after joining the study?

You have the right to leave the study at any point, and it won't affect your medical care.

How to find out more

Frédéric Lavoie, MD MSc FRCSC

fredericlavoiemd@gmail.com 1-514-890-8000 Official trial record

Always speak to your GP or specialist before deciding to take part in a study.