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Orthopedic Implant

Dual-Mobility vs Conventional Hip Implants for Hip Replacement

Phase 4
Waitlist Available
Research Sponsored by Rush University Medical Center
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Age between 18 and 80 years
Patients that are eligible for the requisite implants as deemed by their surgeon
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years
Awards & highlights

Study Summary

This trial tests whether using a metal hip implant leads to higher metal levels in the blood.

Who is the study for?
This trial is for adults aged 18-80 with a BMI under 40 who need hip replacement surgery and are willing to have blood tests after the operation. It's not for those with prior hip infections, other metal implants (except dental), non-osteoarthritis diagnoses, poor kidney function, previous hip surgeries with metal devices, chromium supplement use, serious chronic diseases or expecting another joint surgery within a year.Check my eligibility
What is being tested?
The study compares two groups in primary total hip arthroplasty (THA): one receiving dual mobility components designed to reduce dislocation risk and wear; the other getting conventional single bearing surfaces. The focus is on whether the dual mobility increases metal levels in blood.See study design
What are the potential side effects?
While specific side effects aren't listed here, generally THA can lead to pain at the site of surgery, infection risks, possible allergic reactions to materials used in implants which may affect serum metal levels.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
I am between 18 and 80 years old.
My surgeon has approved me for the necessary implants.
I am willing to have blood tests after surgery.


Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 5 years for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Serum chromium levels, measures chromium level in the serum in ug/L
Serum cobalt levels, measures cobalt level in the serum in ug/L
Serum titanium levels, measures titanium level in the serum in ug/L
Secondary outcome measures
Patient reported outcome measures (survey) for SF-12 score.
Patient reported outcome measures (survey) for the Harris Hip Score
Patient reported outcome measures (survey) for the Hoos Jr. score.
+2 more

Trial Design

2Treatment groups
Experimental Treatment
Active Control
Group I: Modular Dual Mobility CohortExperimental Treatment1 Intervention
Patients in this group will receive a Taperloc femoral stem, inner ceramic femoral head (28mm), mobile polyethylene bearing, cobalt alloy liner, and G7 acetabular shell.
Group II: Conventional CohortActive Control1 Intervention
Patients in this group will receive a Taperloc femoral stem, ceramic femoral head (size 32mm for acetabular components 48/50mm; size 36mm for acetabular components > 52mm), polyethylene bearing, and G7 acetabular shell.

Find a Location

Who is running the clinical trial?

Rush University Medical CenterLead Sponsor
420 Previous Clinical Trials
163,197 Total Patients Enrolled
Zimmer BiometIndustry Sponsor
373 Previous Clinical Trials
67,381 Total Patients Enrolled

Media Library

Conventional cohort (Orthopedic Implant) Clinical Trial Eligibility Overview. Trial Name: NCT03371212 — Phase 4
Cobalt Chromium Titanium Blood Test Research Study Groups: Modular Dual Mobility Cohort, Conventional Cohort
Cobalt Chromium Titanium Blood Test Clinical Trial 2023: Conventional cohort Highlights & Side Effects. Trial Name: NCT03371212 — Phase 4
Conventional cohort (Orthopedic Implant) 2023 Treatment Timeline for Medical Study. Trial Name: NCT03371212 — Phase 4

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Am I eligible to contribute to this clinical investigation?

"This research project is enrolling 52 persons aged 18 to 80 with beryllium. To be eligible, participants must also have a Body Mass Index below 40 and qualify for the essential implants as evaluated by their physician."

Answered by AI

What potential risks come with Dual mobility cohort implementation in patients?

"Leveraging the safety data from Phase 4 trials, we at Power rate dual mobility cohort with a score of 3."

Answered by AI

Does this trial recruit participants of ages under 30?

"This trial is enrolling individuals who have attained the legal age of consent and are no older than 80 years old."

Answered by AI

Are there any vacancies that participants can fill in this experiment?

"According to the information published on clinicaltrials.gov, this particular medical study has ceased enrolling patients; its first post date being December 15th 2017 and last edit taking place October 27th 2022. Nevertheless, there are other trials actively recruiting participants at present."

Answered by AI

What objectives is this experiment attempting to fulfill?

"For the duration of this trial, roughly up to 5 years, serum titanium levels will be tracked as a primary outcome measure (measured in ug/L). Secondary objectives include patient reported outcomes using SF-12, SANE and HOOS Jr. surveys - with higher scores indicating better results (scores up to 100 are achievable)."

Answered by AI
~0 spots leftby May 2024