SiNtx Technologies Inc (SINT)

[SmokerX]

Not suggesting we should return to a one piece design. I've seen larger implants that where modular in dogs titanium stem snap.That one The manufacturer wanted back to have a look at. Just an explanation for why there was no galvanic corrosion of dissimilar metals where the stem met the head after 8 years on that implant. The answer was the stem and head where one piece made out of titanium. Also heavy wear in the PEEK cup. PEEK being softer than metal it makes sense the particulate was pure PEEK. Also no metal in the cup, just a pure PEEK cup that was removed for loosening (actually expecting peek to be bio compatible enough to fuse) Nope its a press fit so the bone most likely retreated to warrant a revision.

What's the best design? I dunno. A hip resurfacing made out of SiNi, something similar to CSC on the fusing portions? lab grown cartilage inserts? You might say lab grow a bone hip implant at that point but I suspect Silicon Nitride would out perform that and natural antibacterial properties.

Is a modular Titanium head on titanium stem going to out perform a chrome cobalt head on a Titanium stem with a PEEK liner in place? I'd say probably. I would love to absolutely berate what ever R word designed that without taking galvanic corrosion of dissimilar metals into consideration. This is absolute basic level stuff. Just no excuse for that to hit the market. He should have approached ONE material engineer with the idea and been laughed at for a week and end of discussion. Really says alot about the world we live in to me. Planet of the Apes comes to mind.