Role of Bone in Knee Osteoarthritis (OA)

November 2, 2015 updated by: David Hunter, The New England Baptist Hospital

The Role of Bone and Its Measurement in Knee Osteoarthritis

The purpose of the study is to investigate protein and gene expression among damaged knee tissues. We will perform MRI's on subjects prior to total knee replacement to identify the location of bone marrow lesions. Connective tissues including tendon, ligament, and meniscus specimens normally discarded from total joint replacements will be used for live cell harvest, and protein and gene expression analyses of tissue or cultured cells.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

BACKGROUND AND SIGNIFICANCE:

Although the presence of bone marrow lesions (BML) on MRI is strongly associated with osteoarthritis (OA) progression and pain in some studies, the mechanism for this relation and the underlying pathology is not well established. The lack of knowledge on what these lesions constitute hampers their clinical utility both with regards to measurement and targeting for therapeutic intervention.

Our preliminary data has localized specific changes in bone mineralization, remodeling and defects within BML features that are adjacent to the subchondral plate. BMLs appear to be sclerotic compared to unaffected regions; however, the mineral density in these lesions is reduced and may render this area to be mechanically compromised, and thus susceptible to attrition. Limited histological analysis of BMLs reveal thrombi, diffuse fibrinoid necrosis and hyperplasia of blood vessel walls - all indicative of infarction-like pathology.

The aim of this research proposal is to create more specific targets and improve our understanding of the pathology in BMLs.

Specific Aim 1:

- To collect tissue to evaluate protein and gene expression of these tissues and cultured cells.

Study Type

Observational

Enrollment (Actual)

101

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

  • Australia
    • New South Wales
      • Sydney, New South Wales, Australia, 02120
        • University of Sydney

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Male or female, over age 18, with scheduled primary total knee replacement surgery at NEBH, with no contradindications for MRI

Description

Inclusion Criteria:

  • subjects having primary knee replacement surgery with 1 participating surgeon at NEBH (principal investigator)

Exclusion Criteria:

  • subjects having a revision knee replacement instead of a primary knee replacement
  • contraindications for MRI
  • pregnancy

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Number of Participants With Viable Specimens for Genetic Analysis
Time Frame: Tissue samples collected at time of surgery
Tissue samples collected at time of surgery

Collaborators and Investigators

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

Sponsor

The New England Baptist Hospital

Investigators

  • Principal Investigator: David Hunter, MD, University of Sydney

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

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

July 1, 2008

Primary Completion (Actual)

April 1, 2013

Study Completion (Actual)

April 1, 2013

Study Registration Dates

First Submitted

February 23, 2009

First Submitted That Met QC Criteria

February 24, 2009

First Posted (Estimate)

February 25, 2009

Study Record Updates

Last Update Posted (Estimate)

December 4, 2015

Last Update Submitted That Met QC Criteria

November 2, 2015

Last Verified

November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NEBH 2008-018

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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