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- Talk
- Canada
Irregular Ultra-porous Titanium Enhances Implant Stability & Bone Ingrowth in an Intra-articular Ovine Model
Description
This presentation focuses on a study comparing two ultra-porous titanium coatings, Gription and Porocoat, in a weight-bearing ovine model to evaluate their fixation strength and bone in-growth over time. The aim is to explore whether Gription, which has been designed with higher porosity and friction coefficients, provides superior fixation compared to the clinically established Porocoat, especially in scenarios with poor bone quality, such as hip revisions.
Adele Changoors leads the discussion by outlining the significance of their research, which subjected these coatings to a load-bearing environment akin to clinical settings. The study involved the press-fitting of coated cylindrical implants into the femoral condyles of skeletally mature sheep, with various time points for observation (4, 8, or 16 weeks).
The results indicated that Gription exhibited higher forces at failure and stiffness compared to Porocoat, especially at the 16-week mark, suggesting better fixation stability. Moreover, the amount of bone in-growth measured through microscopy was notably higher in the Gription group, indicating a potential advantage for early postoperative recovery.
Despite some discrepancies between bone in-growth data and biomechanical strength, the study concluded that Gription's design may better facilitate osseointegration. The researchers also noted the challenge of consistent implant placement during surgery and its impact on results. Overall, the findings validate Gription's promising role in improving patient outcomes in hip replacement surgeries where bone integrity is compromised.