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Total Knee Arthroplasty / Position of Customized X-Ray PSI Guides Using Optical NavigationNCT02504112

Zimmer CAS PSI X-Ray Knee in TKA (Total Knee Arthroplasty)

An observational study of Total Knee Arthroplasty / Position of Customized X-Ray PSI Guides Using Optical Navigation, run by Zimmer Biomet.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of the observational study is to assess the positioning of customized guides designed from patients X-Rays (Zimmer® X-Ray PSI Knee) using optical navigation in primary total knee arthroplasty. Read more about this study

Who is it for?
Ages 18 years and older
How many people
9 participants
Where
No sites listed yet
Study dates
May 2016to May 2018
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients over 18 years old with indication of Total Knee Arhtroplasty

Who may be able to join

  • Male or female
  • Needs a primary TKA and he/she is Persona® knee implant compatible
  • Diagnosed with non-inflammatory degenerative joint disease (e.g., osteoarthritis, post-traumatic arthritis, avascular necrosis, etc.)
  • Over 18 years old
  • Able to:
  • Understand what participation in the study entails and willing to consent (patient or his/her legal guardian) to participate in the study by signing and dating an IRB/EC approved inform consent form. and
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  • Follow surgeon/staff instructions, and
  • Return for all follow-up evaluations, and
  • Able and willing to undergo a preoperative radiographs (all cases)
  • Meets an acceptable preoperative medical clearance and is free of or treated for cardiac, pulmonary, hematological or other conditions that would pose excessive operative risk.
  • Has a presence of varus or valgus deformity of 15 degrees or less.

Who cannot join

  • Is currently enrolled in an investigational new drug or device study
  • Has an active infection (including septic knee, distant infection, or osteomyelitis)
  • Has neurological disorders (including, but not limited to Parkinson's disease)
  • Has had a prior ipsilateral unicompartmental knee arthroplasty, TKA, knee fusion or patellectomy.
  • Has hip or knee ankylosis.
  • Have indications of intra- and/or extra-articular deformations that would eliminate or tend to eliminate adequate implant support or prevent the use of an appropriately sized implant, such as polio, history of tibial plateau fracture, etc.
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  • Has any metal within 150 mm of the joint line for the operative-side knee.
  • Has knee deformities greater than 15 degrees of fixed varus, valgus, or flexion contracture on initial physical examination.
  • Is a female who is pregnant or lactating
  • Is currently involvement in any personal injury litigation, medical-legal or worker's compensation claims
  • Has arterial disease or stents that would exclude the use of a tourniquet.
  • Has insufficient quality or quantity of bone to support the implant due to prior knee surgery (or surgeries), cancer, metabolic bone disease, osteoporosis/osteopnea (diagnosed or treated with medication), active/old/remote infection, etc.
  • Has a mental condition that may interfere with his/her ability to give an informed consent or interfere with his/her ability or willingness to fulfill the requirements of the study.
  • Has a condition that would place excessive demands on the implant (e.g., Charcot's joints, muscle deficiencies, multiple joint disabilities, skeletal immaturity, etc.).
  • Has collateral ligament insufficiency.
  • Has an immunosuppressive disorder (e.g., AIDS, etc.) that would require cytotoxic drugs, corticosteroids, large dose of irradiation, or antilymphocytic serum.

About this study

Official title: Evaluation of Zimmer® CAS PSI X-Ray Knee in Total Knee Arthroplasty (TKA): Technical Outcomes

The objective of the observational study is to assess the positioning of customized guides designed from patients X-Rays (Zimmer® X-Ray PSI Knee) using optical navigation in primary total knee arthroplasty.

Read the detailed description

The proposed research is a single center, prospective, case series, and non-controlled study. One orthopedic surgeon will perform 30 primary TKAs using X-Ray PSI Knee guides, generated from X-ray. Patients who have been appropriately indicated as candidates for TKA and who meet the specified inclusion and exclusion criteria, will be informed about Zimmer® X-Ray PSI Knee technology and offered entry into the study. Informed consent, in accordance with current ethical board regulatory requirements and best practice, will be obtained from all patients.

Being tested
there is no intervention

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • there is no interventionOther

Study groups in NCT02504112
Study groupRoleWhat they receive
X-Ray PSI GroupMale or female patients, over 18 years old and with indication of total knee arthroplasty
Receives: Other: there is no intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. assess the positioning accuracy and precision of customized X-RAY PSI guides using the Sesamoid Optical Navigation system in Total Knee Arthroplasty

    Measured: Intra-operative

Secondary outcomes (1)
  1. assess the correlation between planned vs. actual component size and bony resection thickness

    Measured: Intra-operative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jul 2015 (estimated)
  2. Study startMay 2016
  3. Primary completionMay 2018
  4. Study completionMay 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02504112
Sponsor's protocol ID
CSU2015-12K
Status last verified
Jun 2018
First submitted
17 Jul 2015
Last updated
25 Jun 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Total Knee Arthroplasty / Position of Customized X-Ray PSI Guides Using Optical Navigation, run by Zimmer Biomet.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Jun 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

assess the positioning accuracy and precision of customized X-RAY PSI guides using the Sesamoid Optical Navigation system in Total Knee Arthroplasty (time frame: Intra-operative). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Jun 2018.

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