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 language | English (US) |
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Pages (from-to) | 1008-1013 |
Number of pages | 6 |
Journal | Journal of Arthroplasty |
Volume | 30 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1 2015 |
Keywords
- Aseptic loosening
- Cementless fixation
- Osseointegration
- Porous tantalum monoblock cup
- Total hip arthroplasty
ASJC Scopus subject areas
- Orthopedics and Sports Medicine