Performance of Porous Tantalum vs. Titanium Cup in Total Hip Arthroplasty: Randomized Trial with Minimum 10-Year Follow-Up

Julien Wegrzyn, Kenton R Kaufman, Arlen D. Hanssen, David G. Lewallen

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Porous tantalum monoblock cups have been proposed to improve survivorship of cementless primary THA. However, there are few direct comparative trials to established implants such as porous-coated titanium cups. 113 patients were randomized into two groups according to the cup: a porous tantalum monoblock cup (TM) or a porous-coated titanium monoblock cup (control). At a mean of 12 years after THA, no implants migrated in both groups. Two TM patients (4%) and 13 control patients (33%) presented with radiolucency around the cup (P<. 0.001). In the control group, 1 cup (2%) was revised for aseptic loosening. At 12 years post-implantation, porous tantalum monoblock cups demonstrated 100% survivorship, and significantly less radiolucency as compared to porous-coated titanium monoblock cups.

Original languageEnglish (US)
Pages (from-to)1008-1013
Number of pages6
JournalJournal of Arthroplasty
Volume30
Issue number6
DOIs
StatePublished - Jun 1 2015

Keywords

  • Aseptic loosening
  • Cementless fixation
  • Osseointegration
  • Porous tantalum monoblock cup
  • Total hip arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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