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Total Knee Arthroplasty With Personalized Implantation: Computer Navigation-Assisted Surgery Versus Robotic-Assisted Surgery

Key facts

Who runs it
Groupe Hospitalier Diaconesses Croix Saint-Simon
Where
Paris, FranceSee the site
Trial code
Status
Recruiting
People taking part
140 people, planned
Started
26 Jan 2026
Expected to end
26 Jan 2029
Type of study
Interventional, 2 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • Robotic-Arm Assisted Surgery (RA)
  • Computer-Assisted Navigation (CAN)
Record updated
8 May 2026

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

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Who can take part

  • Patient providing written informed consent according to regulatory requirements
  • Male or female patients aged ≥18 years
  • Patients undergoing primary total knee arthroplasty for osteoarthritis
  • Use of Attune® prosthesis with posterior cruciate ligament retention (CR) and patellar resurfacing

Who cannot take part

  • Previous fracture or bone surgery (osteotomy) of the ipsilateral femur or tibia (except hip or ankle surgery)
  • History of ligament reconstruction
  • Patients with cognitive impairment
  • Preoperative knee stiffness with flexion contracture >15° or flexion <90°
  • Individuals deprived of liberty by judicial or administrative decision
  • Patients not affiliated with a social security system
  • Patients unable to understand French
  • Patients whose place of residence makes close clinical follow-up impossible -- Women of childbearing potential without effective contraception
  • Pregnant or breastfeeding women

Where in France

  • Groupe Hospitalier Diaconesses Croix Saint-SimonParis, FranceContact: Younes KERROUMI, Clinical Research PhysicianTaking people

About the trial

What the trial wants to find out

Title: Personalized Total Knee Arthroplasty: Computer-Assisted Navigation vs. Robotic Assistance (CAN-ARD).

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Summary:

Knee osteoarthritis is frequently treated with Total Knee Arthroplasty (TKA). However, approximately 20% of patients remain dissatisfied following the procedure. This study aims to compare two surgical assistance technologies designed to improve prosthetic placement accuracy: Computer-Assisted Navigation (CAN) and Robotic-Arm Assistance (RA).

The primary objective is to determine if there is a significant difference in functional outcomes and the "forgotten joint" sensation (measured by the Forgotten Joint Score - FJS) between patients operated on with robotic assistance versus those with traditional navigation at 3, 12, and 24 months post-surgery. The study's hypothesis is that there is no major clinical difference between these two techniques when applied within a personalized alignment strategy.

The 2 groups in the trial

  • RoboticTreatment being tested

    Patients undergoing Prosthetic knee arthroplasty under robotic assistance

    Treatment: Robotic-Arm Assisted Surgery (RA)

  • NavigationExisting treatment, for comparison

    Patients undergoing Prosthetic knee arthroplasty under navigation assistance

    Treatment: Computer-Assisted Navigation (CAN)

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Total Knee Replacement With Personalized Implantation Navigation-assisted Surgery Versus Robotic Assistance "CAN-ARD"
Record updated
8 May 2026