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Navio With Total Knee Arthroplasty

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03317834
Recruitment Status : Active, not recruiting
First Posted : October 23, 2017
Last Update Posted : September 18, 2019
Information provided by (Responsible Party):
Smith & Nephew, Inc.

Brief Summary:
The purpose of this study is to demonstrate superior accuracy with the Navio ™ Robotic-assisted Surgical System in achieving desired post-operative mechanical alignment, compared to TKA procedures using standard instruments. An additional study purpose is to document clinical and patient-reported outcomes in subjects receiving TKA with the Navio ™ system.

Condition or disease Intervention/treatment
Total Knee Arthroplasty Arthroplasty of Knee Device: Navio ™ Robotic-assisted Surgical System

Detailed Description:

Total Knee Arthroplasty (TKA) has become an effective and reliable treatment for arthritis of the knee (1). TKA is associated with low morbidity and mortality, and its effectiveness in reducing joint pain and improving range of motion is well established. In 2014, over 750,000 knee replacements were performed in the US (2).

A significant innovation in TKA has been the introduction of computer navigation and robotic-assisted surgery (3). One such technology is the Navio™ Robotic-assisted Surgical System. This system is a semi-autonomous image-free system. During the surgery, the surgeon maps the condylar landmarks and determines alignment indices to define the volume and orientation of bone to be removed. The tools to remove the bone and place the implants are controlled and manipulated by the surgeon with the guidance of a 3-dimensional digital map of the surgical surface.

Originally the Navio™ system was launched for use in unicondylar knee replacement only. To date, there have been over 1000 unicondylar knee replacement surgeries using the system. In 2017, Smith & Nephew Inc. expanded the indications for the Navio™ system to include TKA. The purpose of this multicenter, prospective study is to evaluate outcomes associated with this new indication.

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Study Type : Observational
Estimated Enrollment : 120 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Clinical, Radiographic and Patient-reported Outcomes Associated With the Use of the Navio™ Robotic-assisted Surgical System in Total Knee Arthroplasty
Actual Study Start Date : October 30, 2017
Estimated Primary Completion Date : October 2020
Estimated Study Completion Date : October 2020

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Knee Replacement

Group/Cohort Intervention/treatment
Study Population
Total Knee Replacement with Navio Surgical Systems
Device: Navio ™ Robotic-assisted Surgical System
Total Knee Replacement

Primary Outcome Measures :
  1. Post-operative Mechanical Alignment [ Time Frame: 1 month ]
    the proportion of subjects achieving post-operative mechanical alignment

Secondary Outcome Measures :
  1. Implant survival rate [ Time Frame: 2 years ]
    Did knee survive with no revision through 2 years

  2. Knee Society Score 2011 [ Time Frame: 2 years ]
    Patient Reported Outcomes using Knee Society Score 2011 questionnaire

  3. Quality of Life (EQ-5D) 5L [ Time Frame: 2 years ]
    Patient Reported Outcomes using EuroQol Five Dimensions Questionnaire (EQ-5D - 3L) questionnaire

  4. Forgotten Joint Score (FJS) [ Time Frame: 2 years ]
    Patient Reported Outcomes using Forgotten Joint Score (FJS) questionnaire

  5. Radiographic Assessments [ Time Frame: at PreOp, 1month, 6 month, 1 year and 2 year visits ]
    Mechanical Alignment on Long Leg X-rays,Standard AP, Lateral, and Patellar (Skyline or Merchant) X-rays

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   up to 80 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
To eliminate the potential for selection bias, Investigators should screen all subjects undergoing a Navio™ assisted TKA. In order to do so, only the existing information obtained per standard routine medical procedures will be used. No study-specific screening procedures, activities or questionnaires will be performed during pre-screening.

Inclusion Criteria:

  1. Subject requires primary total knee arthroplasty with the Journey II BCS or Cruciate-Retraining (CR) Systems due to degenerative joint disease (primary diagnosis of osteoarthritis, post-traumatic arthritis, avascular necrosis, rheumatoid arthritis.
  2. Subject was considered skeletally mature at the time of cone implantation (at least 18 years or older.)
  3. Subject agrees to consent to and to follow the study visit schedule (as defined in the study protocol and informed consent form) by signing the IRB/EC approved informed consent form.
  4. Subject plans to be available through two (2) years postoperative follow-up.

Exclusion Criteria:

  1. Subject has BMI ≥ 40.
  2. Subject has condition(s) that may interfere with the TKA survival or outcome (i.e., Paget's or Charcot's disease, vascular insufficiency, muscular atrophy, uncontrolled diabetes, moderate to severe renal insufficiency or neuromuscular disease, or an active, local infection).
  3. Subject is deemed by investigator to require a constrained or deep dish tibial insert.
  4. Subject has inadequate bone stock to support the device (severe osteopenia, history of severe osteoporosis or severe osteopenia).
  5. Subject has mental or neurologic condition(s) that may pre-empt the ability or willingness to restrict activities.
  6. Subject is 80 years of age or older.
  7. Subject is a prisoner or impending incarceration.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03317834

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United States, Arizona
Hedley Orthopedics
Phoenix, Arizona, United States, 85016
Orthopaedic Associates of Central Arizona
Scottsdale, Arizona, United States, 86305
United States, California
San Diego Orthopaedic
San Diego, California, United States, 92103
United States, Michigan
Bronson Health
Kalamazoo, Michigan, United States, 49006
United States, New York
Hospital for Joint Disease Orthopaedic Institute
New York, New York, United States, 10003
United States, Ohio
Albany, Ohio, United States, 43054
Sponsors and Collaborators
Smith & Nephew, Inc.
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Study Chair: Kelli Armstrong Smith & Nephew, Inc.
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Responsible Party: Smith & Nephew, Inc. Identifier: NCT03317834    
Other Study ID Numbers: 17-NPFS-04
First Posted: October 23, 2017    Key Record Dates
Last Update Posted: September 18, 2019
Last Verified: September 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No