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

Locations

2
New York University Medical Center10003, New YorkNew York, United States
Rothman Institute19107, PhiladelphiaPennsylvania, United States

Sponsors and collaborators

Rush University Medical Center

Lead sponsor

Rothman Institute Orthopaedics

Collaborator

Keck School of Medicine of USC

Collaborator

NYU Langone Health

Collaborator