Abstract
ABSTRACT Patients undergoing a revision total hip arthroplasty (THA) are at increased risk for dislocation. The literature suggests dual-mobility components may decrease the frequency of dislocation. We conducted a retrospective study of one type of dual mobility acetabular component implanted in 82 revision THA cases that were considered at increased risk for dislocation. Of the 82 hips, 58 had a mean follow-up of 12 months (3–28 months). The indication for revision was instability in 18 hips (31%), adverse metal-on-metal reaction in 13 hips (22%), reimplantation for infection in 11 hips (19%), and aseptic loosening of the acetabular component in 9 hips (16%). In the course of follow-up, 6 hips developed a deep infection requiring reoperation. There were no early hip dislocations. McClellan TR, Calderon RD, Bolognesi MP, Attarian DE, Lachiewicz PF, Wellman SS. Dislocation Rate at Short-term Follow-up after Revision Total Hip Arthroplasty with a Dual Mobility Component. The Duke Orthop J 2016;6(1):17-20.
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