Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Imageless vs. image-based navigation in robot-assisted knee replacement

Official title: Outcomes of Robotic-Assisted Total Knee Arthroplasty With Imageless Navigation Versus Image-Based Navigation: A Randomised, Single-Blinded, Non-Inferiority Trial

Run by Medical University of Warsaw · NCT07522489 · Data updated 2026-11-12

This study tests whether imageless navigation is as good as image-based navigation for robotic-assisted total knee replacement in people with knee osteoarthritis.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment146 (estimated)
SponsorMedical University of Warsaw
Academic / other
Locations1 site (Warsaw, Mazovian)
StatusRecruiting
StartedAugust 6, 2026
Main results expectedJanuary 2029
Study endsJanuary 2029
Registry record updatedAugust 13, 2026
Trial IDNCT07522489 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with radiologically confirmed, symptomatic end-stage knee osteoarthritis eligible for primary robotic-assisted TKA.

Probably not a fit

Patients with conditions or factors that limit functional assessment or affect outcomes (e.g., active infections, significant neurologic disease) may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized trial compares imageless navigation to image-based navigation during robotic-assisted total knee arthroplasty for end-stage knee osteoarthritis. Participants are assigned 1:1 to either method and followed for 12 months, with functional surveys and postoperative checkups. All procedures are performed by experienced surgeons using a standardized surgical protocol. The primary focus is on functional outcomes and postoperative complications, with remote monitoring and radiographic assessments as part of the evaluation.

Why it matters

Potential benefit: If successful, the imageless approach could offer similar outcomes with potentially simpler setup and reduced imaging requirements.

How similar studies have gone: Previous research in navigation methods for TKA has shown comparably effective results between imageless and image-based approaches in some contexts; this trial seeks to confirm with a specific robotic-assisted protocol.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Symptomatic, radiologically confirmed advanced osteoarthritis of the knee.
2. Patients referred for primary robotic-assisted total knee arthroplasty.
3. Patients in whom a correctly performed radiograph with designated sensors has confirmed the possibility of performing robotic-assisted total knee arthroplasty with image-based navigation.
4. Patients capable of giving informed consent to participate in the study and willing to attend all follow-up visits.

Exclusion Criteria:

1. No informed consent for the surgery.
2. No informed consent for taking part in the study.
3. Pregnancy.
4. Active infections.
5. Diagnosed comorbidities: autoimmune arthritis, malignant tumors, serious neurological disorders affecting a reliable functional outcome measurement (e.g., severe stroke, severe Parkinson's disease).

Where it's running

  • Department of Orthopedics and Locomotor Traumatology, Medical University of Warsaw
    Warsaw, Mazovian, Poland
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Suzetrigine for pain relief after knee replacement

    This trial tests whether suzetrigine can reduce opioid use after a total knee replacement compared with placebo.

    Recruiting Phase 3 Hospital for Special Surgery, New York · New York, New York · NCT07864896

  • Focused ultrasound nerve treatment for medial knee osteoarthritis pain

    This study will try focused ultrasound delivered through the skin to disrupt a small medial knee nerve and reduce chronic osteoarthritis pain in adults with moderate-to-severe medial knee pain.

    Recruiting FUSMobile Inc. · North York, Ontario · NCT07178951

  • Medial knee osteoarthritis: inside vs outside corticosteroid injection

    This study tests whether injecting a steroid inside the knee joint leads to different pain results than injecting it on the outside of the knee in people with medial knee osteoarthritis.

    Recruiting at 5 sites University of Chicago · Bolingbrook, Illinois and 4 other locations · NCT07804446

  • Platelet-rich plasma added to hyaluronic acid for knee osteoarthritis

    This study tests whether a single injection of hyaluronic acid plus autologous platelet-rich plasma helps reduce knee OA symptoms more than hyaluronic acid alone in adults with moderate knee OA.

    Recruiting Implai Sp z o.o · Warsaw, Masovian Voivodeship · NCT07785401

  • Hyaluronic Acid Plus PRP Injection for Knee Osteoarthritis

    This study tests whether a single HA injection combined with a patient’s own PRP is better at easing knee OA pain than HA alone.

    Recruiting Implai Sp z o.o · Chełm, Lublin Voivodeship · NCT07784907

  • Long-acting local pain medicine after knee replacement

    This study tests whether a new extended-release pain medicine (Zynrelef) given around the knee during total knee replacement can reduce pain after surgery better or as well as standard injections or nerve blocks.

    Recruiting Phase 4 Henry Ford Health System · Grosse Pointe Farms, Michigan · NCT07775248

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.