Analysis of Crosslinked and Conventional Polyethylene Explants
Public ClinicalTrials.gov record NCT01484002. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Collaborative Analysis of UHMWPE Explants: Conventional UHMWPE With No Radiation and Marathon
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This retrospective study will investigate the changes that occur in ultrahigh molecular weight polyethylene (UHMWPE) implants that have been retrieved from joint replacement patients. Analysis techniques will include Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimeter (DSC) and crosslink density measurements. Crosslink density measurements will be evaluated as a function of distance away from the articular surface and the rim of the implant. Gel and hydroperoxide contents will also be evaluated. The objective is to characterize the in vivo and ex vivo changes that occur with cross-linked and conventional polyethylene bearings sterilized by methods that do not involve radiation. The investigators hypothesize that polyethylene absorbs lipids in vivo but experiences negligible oxidation or reductions in polymer crosslinking until it is explanted and stored at room temperature with access to ambient air.
Study identification
- NCT ID
- NCT01484002
- Recruitment status
- Not listed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 60 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 2011 (Type not available)
- Primary completion
- Dec 2017 (Estimated)
- Completion
- Dec 2017 (Estimated)
- Last update posted
- Jan 24, 2017
2011 – 2017
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Orthopaedic Biomechanics and Biomaterials Laboratory at Massachusetts General Hospital | Boston | Massachusetts | 02114 | — |
| Anderson Orthopaedic Research Institute | Alexandria | Virginia | 22306 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01484002, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 24, 2017 · Synced Oct 28, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01484002 live on ClinicalTrials.gov.