Dual Mobility Acetabular Cups in Revision TJA

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorRush University Medical Center

About this trial

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.

Eligibility criteria

Qualifiers

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.

Disqualifiers

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.

Trial design

Treatments tested in this trial

  • Dual Mobility Implant
  • Conventional, single-bearing implant

Treatment groups

322 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Rush University Medical Center

Lead sponsor

Rothman Institute Orthopaedics

Collaborator

Keck School of Medicine of USC

Collaborator

NYU Langone Health

Collaborator