Performance of Porous Tantalum vs. Titanium Cup in Total Hip Arthroplasty: Randomized Trial with Minimum 10-Year Follow-Up.
rct · Level II
Where this comes from
- Record sourced from PubMed, PMID 25765132.
- Also identified by DOI 10.1016/j.arth.2015.01.013.
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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.
Medical subject headings
- Arthroplasty, Replacement, Hip
- Hip Prosthesis
- Osteoarthritis, Hip
- Tantalum
- Titanium
Anatomy
- hip