Long-Term Clinical and Radiographic Outcomes of Porous Tantalum Monoblock Acetabular Component in Primary Hip Arthroplasty: A Minimum of 15-Year Follow-Up

Vincenzo De Santis, Ivan De Martino, Peter K. Sculco, Lazaros A. Poultsides, Giorgio Gasparini

Risultato della ricerca: Contributo in rivistaArticolo in rivista

19 Citazioni (Scopus)

Abstract

Background The porous tantalum monoblock cup has demonstrated excellent short-term and midterm clinical and radiographic outcomes in primary THA, but longer follow-up is necessary to confirm the durability of these results into the second decade. The purpose of this study is to report the clinical and radiographic outcomes for this monoblock cup with a minimum 15-year follow-up. Methods From June 1998 to December 1999, 61 consecutive patients (63 hips) underwent primary THA with a tantalum monoblock acetabular component. All patients were followed clinically and radiographically for a minimum of 15 years. At a mean of 15.6 years (range, 15-16 years) of follow-up, 5 patients had died, and 4 had been lost to follow-up, leaving 52 patients (54 hips) for analysis. The underlying diagnosis that led to the primary THA was primary osteoarthritis in 43 hips, avascular necrosis in 4, developmental hip dysplasia in 3, rheumatoid arthritis in 3 and post-traumatic osteoarthritis in 1. Results One cup was revised for deep infection; at surgery, the cup showed osseointegration. At a mean follow-up of 15.6 years (range, 15-16 years), the survivorship with cup revision for aseptic loosening as end point was 100%. There was no radiographic evidence of loosening, migration, or gross polyethylene wear at last follow-up. The mean Harris Hip Scores improved from 47 points preoperatively to 94 points. Conclusion The porous tantalum monoblock cup in primary THA demonstrated excellent clinical and radiographic outcomes with no failures because of osteolysis or loosening at a minimum follow-up of 15 years.
Lingua originaleEnglish
pagine (da-a)110-114
Numero di pagine5
RivistaTHE JOURNAL OF ARTHROPLASTY
Volume31
DOI
Stato di pubblicazionePubblicato - 2016

Keywords

  • Acetabulum
  • Aged
  • Aged, 80 and over
  • Arthroplasty, Replacement, Hip
  • Female
  • Follow-Up Studies
  • Hip Dislocation, Congenital
  • Hip Prosthesis
  • Humans
  • Male
  • Middle Aged
  • Osteoarthritis, Hip
  • Polyethylene
  • Porosity
  • Prosthesis Failure
  • Retrospective Studies
  • Tantalum
  • aseptic loosening
  • cementless fixation
  • osseointegration
  • osteolysis
  • porous tantalum monoblock cup
  • total hip arthroplasty

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