Trabecular Titanium vs. conventional titanium coated cups
Long-term implant stability and biological integration remain key priorities in total hip arthroplasty, particularly when evaluating materials and designs that may influence long-term fixation and clinical outcomes.
In this article, we highlight a prospective monocentric study comparing conventional titanium-coatedacetabular cups (DELTA PF) vs. 3D printed Trabecular Titanium acetabula cups (Delta TT) in primary THA, with a mean follow-up exceeding 12 years, providing meaningful long-term evidence on both clinical and radiological outcomes.
The results offer strong reassurance for long-term use:
- Both cup designs achieved excellent clinical and radiological outcomes over the entire follow-up period
- Significant functional improvement was observed in both groups:
- Group A (Titanium conventional-coated cups) showed HHS improvement from 27.0 pre-op to 90.4 at the latest follow-up
- Group B (3D printed Trabecular Titanium cups) improved from 44 to 96.0, reaching significantly higher final scores compared to group A
- HOOS scores confirmed positive outcomes in both groups at latest follow-up, with slightly higher values in the Trabecular Titanium cohort
- Radiographic parameters, including implant positioning and hip reconstruction metrics (center of rotation and acetabular orientation), demonstrated an improved post-operative hip reconstruction in both groups
- Implant survivorship was comparable, with no acetabular component requiring revision over the 12-year follow-up period in both groups.
These findings reinforce the role of implant material and structure in influencing clinical outcomes. In particular, the higher final scores observed in the Trabecular Titanium group support the hypothesis that higher porosity may enhance osteointegration while maintaining long-term stability.
Clinical takeaway
Both acetabular cup designs demonstrate excellent durability, stability, and clinical performance in the long term. However, the improved functional outcomes associated with Trabecular Titanium suggest an advantage in supporting biological integration, which may be particularly relevant in optimizing long-term patient outcomes.
You can find the link to the study here: LINK
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