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What is stronger, titanium alloy or bone?

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I guess you are asking because many times a titanium implant is used in the place of bone, right? Like for a hip implant? In most cases, the use of Ti has more to do with weight and corrosion than it does strength. read more

Bone doesn’t react badly with Ti when they are joined. My oldest daughter, now 33, had to have one of her leg bones replaced as she broke it at the hip 4 times by the time she was 20. Instead of Ti, they used a cadaver bone since it was the better choice for an entire bone replacement. read more

Finally, titanium foam allows for stress to be replaced on the repaired bone immediately. In fact, it requires it: only load-bearing stress can trigger the proper density formation of the graft and integration of the existing bone with the foam, fostering faster and more substantive healing. read more

Putting in some typical dimensions and material properties we find that the stresses in a bone made from titanium alloy, for example, would be about 1.3 times higher than in a bone of the same weight, made from bone. But the titanium alloy is 5 times stronger so obviously its safety factor is much higher. read more

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