A Comparison of Large Diameter Metal Heads vs. Small Diameter Metal Heads vs/ Dual Mobility Total Hip Replacements

NCT ID: NCT02049892

Last Updated: 2017-12-05

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

80 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-12-01

Study Completion Date

2016-02-01

Brief Summary

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Does having a large diameter metal on polyethylene total hip replacement increase metal ion release. Larger metal heads are thought to have increased torsional forces on the trunion which would like release more metal ions. Increased metal ion levels have been associated with adverse local tissue reactions. Are there any differences comparing these groups to a dual mobility type total hip replacement.

Detailed Description

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Conditions

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Total Hip Replacement

Keywords

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Total Hip Replacement Metal Ion 2-5 years after surgery Asymptomatic

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Metal Ion

Metal Ion Levels

Intervention Type OTHER

Interventions

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Metal Ion Levels

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* One total hip replacement, either a large metal head (\>40) or a small metal head (\<30) on a polyethylene bearing surface.
* 2 to 5 years s/p surgery minimum. No symptoms

Exclusion Criteria

* Any other bearing surface besides metal on poly, no other joint replacements, symptomatic
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Robert T. Trousdale

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Mayo Clinic

Rochester, Minnesota, United States

Site Status

Countries

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United States

Other Identifiers

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13-002050

Identifier Type: -

Identifier Source: org_study_id