Comparing dual mobility and single bearing designs in hip revision surgery
Official title: Dual Mobility Acetabular Cups in Revision TJA
Run by Rush University Medical Center · NCT04090359 · Data updated 2026-11-12
This study is testing if using dual mobility hip implants instead of single bearing designs can help patients who are having hip revision surgery avoid dislocations in the first year after their operation.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 322 (estimated) |
| Sponsor | Rush University Medical Center Academic / other |
| Locations | 2 sites (New York, New York and 1 other locations) |
| Status | Recruiting |
| Started | September 1, 2017 |
| Main results expected | November 2026 |
| Study ends | November 1, 2036 |
| Registry record updated | May 5, 2026 |
| Trial ID | NCT04090359 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients over 18 years old scheduled for revision total hip arthroplasty.
✕Probably not a fit
Patients undergoing primary THA or those with specific intraoperative decisions for constrained liners may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study compares the clinical outcomes of patients undergoing revision total hip arthroplasty (THA) using dual mobility bearings versus single bearing designs with large femoral heads. The hypothesis is that dual mobility components will result in a lower dislocation rate within the first year post-surgery. Patients eligible for this study include those scheduled for various types of revision THA, including conversions from hip resurfacing or hemiarthroplasty. The study aims to provide insights into the effectiveness of dual mobility implants in improving patient outcomes.
Why it matters
Potential benefit: If successful, this study could lead to reduced dislocation rates in patients undergoing revision hip surgeries.
How similar studies have gone: Other studies have shown promising results with dual mobility implants, suggesting potential benefits in reducing dislocation rates.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Any patient older than 18 years of age scheduled for a revision THA, including revision of both components, conversion of a hip resurfacing to THA, conversion of a hemiarthroplasty to THA, and revision of single components which allow implantation of dual-mobility bearings. In addition, patients undergoing reimplantation of a total hip arthroplasty following a two-stage revision for periprosthetic infection will also be included. Only patients with an acetabular shell diameter capable of accommodating at least a 36mm femoral head will be included. Exclusion Criteria: * Less than 18 years of age, primary THA, * conversion of non-arthroplasty femoral neck fracture fixation to THA, * patients unwilling to participate. * patients where the surgeon makes the intraoperative decision to use a constrained liner will be excluded.
Where it's running
-
Rothman Institute
Philadelphia, Pennsylvania, United States Recruiting -
New York University Medical Center
New York, New York, United States Not yet recruiting
Study contacts
- Study coordinator: Craig Della Valle, MD
- Email: craig.dellavalle@rushortho.com
- Phone: (312)432-2468
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.