VISIONAIRE™ Value Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

38 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-04-30

Study Completion Date

2011-02-28

Brief Summary

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This is a single center randomized observational study that evaluates the cost benefit ratio between the use of two types of instrumentation in TKA: standard instrumentation vs. VISIONAIRE™ Patient Matched Technology. This study does not involve treatment or investigational products, as all components are FDA approved and are commercially available.

Detailed Description

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The objective of the current observational study is to assess value of surgical instrumentation following analysis of health economic data. It is hypothesized that patient matched cutting block technology VISIONAIRE™ may reduce TKA operative time, blood loss, surgical error and adverse event risk as well as providing improved mechanical alignment. In order to test this hypothesis, subjects will be randomized to either VISIONAIRE™ or standard TKA instrumentation groups. One site will enroll a total of 38 patients; 19 patients per group. All patients meeting the inclusion/exclusion criteria specified in this protocol will be asked to participate in the study. If the patient consents to participate, they will be enrolled in the study and randomized to one of the two study arms. Patients requiring TKA will be implanted with Legion, Genesis II or Journey BCS (Smith \& Nephew) total knee implant systems. Standard instrumentation will be used to assist the surgeon in placing the implant in the control group. In the VISIONAIRE™ group, standard instrumentation will not be used in the surgery. Patients randomized to the VISIONAIRE™ arm will have an MRI preoperatively that will be used to create the customized cutting blocks. All patients will have an x-ray at each postoperative interval.

Conditions

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Osteoarthritis of the Knee

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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VISIONAIRE™

Total knee arthroplasty with VISIONAIRE™ patient-matched cutting blocks

No interventions assigned to this group

Standard Instrumentation

Total knee arthroplasty with standard instrumentation

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Patient is diagnosed with degenerative joint disease of the knee requiring a unilateral TKA.
2. Patient is of legal age to consent, and is skeletally mature.
3. Patient is willing to sign and date an IRB/IEC approved consent form.

Exclusion Criteria

1. Patient has poor bone stock making a TKA unjustifiable.
2. Patient has active, local infection or previous intra-articular infections.
3. Patient has neuropathic (Charcot) joint.
4. Patient is pregnant or may become pregnant during the course of the study.
5. Patient is severely overweight (BMI \>40).
6. Patient is a prisoner.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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John Noble, Jr, M.D.

Role: PRINCIPAL_INVESTIGATOR

Center for Orthopaedics Lake Charles, LA

Locations

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John Noble, Jr.

Lake Charles, Louisiana, United States

Site Status

Countries

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United States

References

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J Arthroplasty. 2011 Sep 9. [Epub ahead of print] http://www.ncbi.nlm.nih.gov/pubmed/21908169

Reference Type RESULT

Noble JW Jr, Moore CA, Liu N. The value of patient-matched instrumentation in total knee arthroplasty. J Arthroplasty. 2012 Jan;27(1):153-5. doi: 10.1016/j.arth.2011.07.006. Epub 2011 Sep 9.