- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01064063
Randomized Controlled Clinical Evaluation to Compare Vanguard Cruciate Retaining and AGC Total Condylar Knee Implants (Vanguard)
Study Overview
Status
Intervention / Treatment
Detailed Description
This clinical trial was initially designed as a multi-centre, randomized controlled study, comparing the Vanguard CR with the AGC in routine use. The study now is a single centre study.
The Vanguard CR system has been specifically designed to give greater knee stability through the use of more anatomic patello-femoral kinematics.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
East Sussex
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St. Leonards on Sea, East Sussex, United Kingdom, TN37 7RD
- East Sussex Hospital NHS Trust
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Pre-op knee score of <70
Scheduled to undergo primary total knee replacement with any of the following indication:
- pain and disabled knee joint resulting from Osteoarthritis, Rheumatoid Arthritis, or Traumatic arthritis.
- One or more compartments involved.
- Need to obtain pain relief and improve function
- Ability and willingness to follow instructions, including control of weight and activity level, and to return for follow-up evaluations
- A good nutritional state of the patient
- Full skeletal maturity of the patient, patients who are at least 18 years of age.
- Patients of either sex
- Consent form read, understood, and signed by patient
Exclusion Criteria:
- Pre-op knee score greater than or equal to 70
- Infection
- Osteomyelitis
- Previous partial or total prosthetic knee replacement on the operative side
- Skeletal immaturity of the patient, patients who are less than 18 years of age.
- Sepsis
- Uncooperative patient or patient with neurological disorders who are incapable of following directions
- Osteomalacia
- Distant foci of infections
- Rapid joint destruction, marked bone loss, or bone resorption apparent on roentgenogram
- Vascular insufficiency, muscular atrophy, or neuromuscular disease in affected limb
- Incomplete or deficient soft tissue surrounding the knee
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: AGC knee
Patients were randomised to receive an AGC Cruciate Retaining cement knee.
This is the control group in the study; the AGC is the gold standard of Biomets' knee products.
|
The AGC knee is a metal and polyethylene total condylar knee system offering complete component interchangeability.
|
Experimental: Vanguard CR
Patients were randomised to receive a Vanguard Cruciate Retaining Knee from the Vanguard system which encompasses concepts used in the AGC family of knees.
The Vanguard is specifically designed to give greater knees stability through use of more anatomic patello-femoral kinematics.
|
The Vanguard CR is a metal and polyethylene total condylar knee system.
The system contains three primary components: femoral, tibial, and bearing components, and a peripheral component: the patella button.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
American Knee Society Knee Score
Time Frame: 2 year
|
Objective scoring system to rate the knee and patient's functional abilities before and after TKA
|
2 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Patient success
Time Frame: 2 year
|
Defined as Knee Score greater than or equal to 80, No component revisions or removals, No pending component revisions or removals, Absence of osteolysis, No migration/subsidence of >3mm or >3 degrees
|
2 year
|
American Knee Society Score, Oxford Knee-12, SF-12
Time Frame: 6w, 6m, 1y, 2y, 3y, 5y, 7y, 10y
|
Objective scoring instruments to rate the knee and patient's functional abilities before and after TKA including scoring systems based on patient questionnaires
|
6w, 6m, 1y, 2y, 3y, 5y, 7y, 10y
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Radiographic evaluation
Time Frame: 6m,1y, 2y, 3y, 5y, 10y
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Assessment of patient x-rays
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6m,1y, 2y, 3y, 5y, 10y
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Adverse Events
Time Frame: any
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Any untoward medical occurrence, unintended disease or injury, or untoward clinical signs (including an abnormal laboratory finding) in subjects, users or other persons, whether or not related to the investigational medical device.
|
any
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Survivorship
Time Frame: 10 years
|
Implant survivorship based on removal of a study device.
|
10 years
|
Noble & Weiss Knee Score, Kujala Score
Time Frame: 6w, 6m, 1y, 2y
|
Scoring systems based on patient questionnaires
|
6w, 6m, 1y, 2y
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: A. Butler-Manual, FRCS, East Sussex Hospital NHS Trust - Conquest Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- BMETEU.CR.LEU29
- NCT01064063 (Registry Identifier: Clinicaltrials.gov)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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