A Phase 4 interventional study of Dual Mobility Implant and Conventional, single-bearing implant in Dislocation, Hip, sponsored by Rush University Medical Center. Recruiting at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-05.
Sponsored by Rush University Medical Center · Phase 4, Interventional, and Prevention
The aim of this study is to the compare clinical outcomes of patients undergoing a revision total hip arthroplasty (THA) with the use of a dual mobility bearing versus a single bearing design with the use of a large femoral head (36mm or 40mm). We hypothesize the use of dual-mobility components in revision THA will be associated with a lower dislocation rate in the first year following surgery.
The aim of this study is to the compare clinical outcomes of patients undergoing a revision total hip arthroplasty (THA) with the use of a dual mobility bearing versus a single bearing design with the use of a large femoral head (36mm or 40mm). We hypothesize the use of dual-mobility components in revision THA will be associated with a lower dislocation rate in the first year following surgery.
107 studies on the registry are indexed under Hip Dislocation; 36 are open to participants now.
This study's planned enrollment of 322 is above the median of 86 across 64 interventional studies indexed under Hip Dislocation.
Browse Hip Dislocation studies →Rush University Medical Center is the lead sponsor of 397 studies on the registry; 61 are open to participants now.
Of its 32 completed or terminated interventional studies of FDA-regulated products, 26 (81%) have results posted.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
If patients are randomized to the dual mobility cohort, they will receive a dual mobility prosthesis at the surgeon's discretion. All surgeries will be performed via the posterior approach, per the participating surgeon's usual standard. Patients will be on postoperative hip precautions for 6 weeks, per departmental protocol. No braces will be utilized.
Device: Dual Mobility Implant
If patients are randomized to the conventional, single bearing cohort, surgeons will use their preferred implant design at their discretion using a 36 or 40mm head, depending on the diameter of the cup and manufacturer specifications. All surgeries will be performed via the posterior approach, per the participating surgeon's usual standard. Patients will be on postoperative hip precautions for 6 weeks, per departmental protocol. No braces will be utilized.
Device: Conventional, single-bearing implant
Patients in this intervention will receive a dual mobility implant
Patients in this intervention will receive a conventional, single-bearing implant
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 6 weeks
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 3 months
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 2 years
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 5 years
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 10 years
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 15 years
Prosthetic Dislocation
The rate of prosthetic dislocation between the two cohorts will be measured at standard postoperative clinic visits
Time frame: 20 years
Complications
Any peri- or postoperative complications will be recorded, including component loosening, occurrence of intraprosthetic dislocation, infection, periprosthetic fractures, revision rates
Time frame: up to 20 years after the patient is discharged from the hospital
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 6 weeks
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 3 months
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 2 years
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 5 years
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 10 years
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 15 years
Routine radiographs assess for loosening and proper component placement
Routine radiographs (AP Pelvis, frogleg lateral, and cross-table lateral radiographs) will be obtained at follow-up visits and assessed for cup placement, anteversion, radiographic signs of loosening, and component migration. Radiographics will be assessed for loosening in a yes/no way.
Time frame: 20 years.
Plan to share: No
Started Sep 2017 (actual). Primary completion is estimated for Nov 2026, 110 months after the start.
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