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Osteoarthritis, Avascular Necrosis, Rheumatoid Arthritis, Post-traumatic ArthritisNCT01469299

Prospective Study Measuring Clinical Outcomes of Knee Arthroplasty Using the VERASENSE™ Knee System

An observational study of Osteoarthritis, Avascular Necrosis, Rheumatoid Arthritis, Post-traumatic Arthritis, run by Orthosensor, Inc. at 8 sites in United States.

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 primary objectives of this evaluation are: 1) To attempt to refine the current clinical understanding of "balance" 2) To determine if patients with quantifiably balanced knee joints exhibit improved clinical outcomes versus patient with residual imbalance, as measured by the VERASENSE™ Knee System Secondary… Read more about this study

Who is it for?
Ages 50 years and older
How many people
285 participants
Where
8 sitesUnited States
Study dates
Oct 2011to Dec 2016
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 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Primary care clinic

Who may be able to join

  • Subject must be a candidate for a primary total knee replacement
  • Subject must be diagnosed with one or more of the following conditions: osteoarthritis, avascular necrosis, rheumatoid or other inflammatory arthritis post-traumatic arthritis
  • Subject's joint must be anatomically and functionally suited to receive the selected implant
  • Subject is 50 years of age or older (≥ 50 yrs) at the time of consent
  • Subject is likely to be available for all study visits
  • Subject is able and willing to sign the informed consent and follow study procedures
  • Subject is not pregnant

Who cannot join

  • Prior total knee arthroplasty
  • Subject has a mental condition that may interfere with the subject's ability to give an informed consent or willingness to fulfill the study requirements (i.e., severe mental retardation such that the Subject cannot understand the informed consent process, global dementia, prior strokes that interfere with the Subject's cognitive abilities, senile dementia, and Alzheimer's Disease)
  • Subject is pregnant
  • Subject has an active infection or joint sepsis
  • Subject has muscular, neurological or vascular deficiencies which compromise the affected extremity (i.e., Parkinson's Disease, Multiple Sclerosis, and Charcot joints)
  • Ligament insufficiencies, prior surgeries such as ACL or PCL reconstructions, posterolateral reconstructions, osteotomies, tibia plateau fractures
  • Range of Motion less than 90 degrees, flexion contracture of more than 20 degrees

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

United States8 sites
  • Emory Healthcare - St. Joseph's Research Institute

    Atlanta, Georgia, 30342

  • Holy Cross Orthopedic Institute

    Fort Lauderdale, Florida, 33334

  • Spectrum Health/Orthopaedic Associates of Michigan

    Grand Rapids, Michigan, 49525

  • University of Wisconsin

    Madison, Wisconsin, 53705

  • Naples Community Hospital

    Naples, Florida, 34102

  • Trinity Health/Bone and Joint Institute

    Port Huron, Michigan, 48060

  • St. Helena Hospital

    St. Helena, California, 94574

  • Tampa General/FORE

    Tampa, Florida, 33637

Other trials in United States

About this study

The primary objectives of this evaluation are: 1) To attempt to refine the current clinical understanding of "balance" 2) To determine if patients with quantifiably balanced knee joints exhibit improved clinical outcomes versus patient with residual imbalance, as measured by the VERASENSE™ Knee System

Secondary objectives:

  • Determine whether a difference in inter-compartment loads and soft tissue tension exists between the physicians intra-operative feel compared to the quantifiable data measured by the VERASENSE™ Knee System
  • Determine which ligament releases are performed by the surgeon to improve soft tissue balance while utilizing the information from the VERASENSE™ Knee System
  • Evaluate range of motion, pain, physical function, activity level, and patient satisfaction between baseline (pre-operative) and post-operative follow-up as well as radiographic success and survivorship of the knee implants
Keywords
Ligament Balance, Total Knee Arthroplasty, Intra-operative Sensors
Medical subject headings
Osteoarthritis, Osteonecrosis, Arthritis, Rheumatoid

What is being measured

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

  1. Joint Balance

    Measured: At time of Total Knee Surgery

Secondary outcomes (1)
  1. Patient Reported Outcome Measures

    Measured: Changes from Baseline at 3-years

Timeline

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

  1. First posted10 Nov 2011 (estimated)
  2. Study startOct 2011
  3. Primary completionDec 2016
  4. Study completionDec 2016

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
Prospective
Enrolment
285 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01469299
Sponsor's protocol ID
1-Anderson
Status last verified
Jan 2017
First submitted
8 Nov 2011
Last updated
11 Jan 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoarthritis, Avascular Necrosis, Rheumatoid Arthritis, Post-traumatic Arthritis, run by Orthosensor, Inc. at 8 sites in United States.

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 7 inclusion and 7 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 11 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Joint Balance (time frame: At time of Total Knee Surgery). 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 11 Jan 2017.

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