Maverick Total Disc Replacement in a 'Real World' Patient Population (Maverick)

January 26, 2016 updated by: Medtronic Spinal and Biologics

Maverick Total Disc Replacement in a 'Real World' Patient Population - A Prospective, Multicenter, Observational Study

The primary purpose of the study is to document the reduction of disability after Maverick total disc replacement surgery in a 'real-world' patient population requiring disc replacement.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
139

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
      • Quebec, Canada, H3G1A4
        • Montreal General Hospital
  • France
      • Bordeaux, France, 33076
        • CHU Pellegrin Tripode
      • Clamart, France, 92141
        • CH Antoine Béclère - Service de Chirurgie Orthopédique
      • Clichy, France, 92110
        • Service de Chirurgie Orthopédique, AP-HP, Hôpital Beaujon
      • Lille Cedex, France, 59037
        • Clinique de Neurochirurgie Hôpital Roger Salengro
      • Marseille, France, 13385
        • CH La Timone
      • Meulan, France, 78250
        • CH de Meulan - Service de Chirurgie Orthopédique
      • Nice, France, 06300
        • Service de Neurochirurgie Hôpital Nice
      • Paris, France, 75010
        • CH Lariboisière, Service de Neurochirurgie
      • Toulouse, France, 31300
        • Clinique du cours Dillon
  • Germany
      • Berlin, Germany, 10117
        • Charité Berlin - Klinik für Orthopädie
      • Magdeburg, Germany, 39120
        • Universitätsklinikum Magdeburg
      • Potsdam, Germany, 14482
        • Praxis für Orthopädie und Neurochirurgie Potsdam

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patient eligibility is determined according to labeling

Description

Inclusion criteria:

  • Degenerative Disc Disease (DDD) defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies
  • Foraminal stenosis due to loss of disc height
  • Back pain and/or leg pain.

Exclusion criteria:

  • Spondylolisthesis at the affected or adjacent level
  • Posterior facet joint damage and/or disease at the affected level, including facet osteoarthritis, pars fracture and prior laminectomy
  • Obesity
  • Osteoporosis
  • Metallic allergy to cobalt-chromium-molybdenum alloys
  • Psychosis
  • Infection
  • Spinal canal stenosis
  • Overlying thoracolumbar kyphosis
  • Systemic infection or infection at the site of surgery
  • Osteopenia, osteoporosis, or osteomalacia to a degree that spinal instrumentation would be contraindicated
  • Diseases of bone metabolism
  • Pregnancy
  • Signs of local inflammation
  • Fever or Leukocytosis
  • Grossly distorted anatomy caused by congenital abnormalities
  • Any other medical or surgical condition which would preclude the potential benefit of spinal implant surgery, such as the presence of congenital abnormalities, elevation of sedimentation rate unexplained by other diseases, elevation of white blood count (WBC), or a marked left shift in the WBC differential count (this also includes: spinal active oncology pathology; not healed fracture at treated or adjacent level)
  • Any case where the implants or components selected would be too large or too small to achieve a successful result
  • Any patient in which implant utilization would interfere with anatomical structures or expected physiological performance
  • Any patient unwilling to follow postoperative instructions.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
lumbar spinal arthroplasty + Maverick™
Patients requiring total disc replacement
Procedure: lumbar spinal arthroplasty + Maverick™
All patients will be subjected to a lumbar spinal arthroplasty. The anterior lumbar spine is approached through either a transperitoneal or retroperitoneal exposure. A complete anterior discectomy is performed and the Maverick™ Artificial Disc System is inserted to replace the damaged lumbar intervertebral disc.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Reduction of Disability at 6 Months Versus Baseline Using the Oswestry Disability Index (ODI)
Time Frame: 6 months
The Oswestry Disability Index (ODI) derives from the Oswestry Low Back Pain Questionnaire, it is used to measure disability for low back pain. The index is scored from 0 to 100; 0 meaning 'no disability' and 100 meaning 'maximum disability'.
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Relief of Back Pain at 6 Months Versus Baseline Using the Back Pain Intensity Score Assessed on a 10 cm Visual Analogue Scale (VAS)
Time Frame: 6 months

Back Pain was documented in a Visual Analogue Scale where the patients marked the location on the 10-centimeter line corresponding to the amount of pain they experienced.

0 = no pain, 10 = worst possible pain
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medtronic Spinal and Biologics

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2009

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 17, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 18, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 19, 2011

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 28, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 26, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Maverick Global Registry

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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