Russian scientists have developed a flexible metal alloy of titanium, an appropriate replacement for damaged bones in humans, according to an article published in “Materials Science and Engineering”.
This new titanium-zirconium-niobium alloy is very resilient to an aggressive environment, such as the human body. Since its elasticity matches that of human bone, implants made from this alloy are much more durable.
Bars made from the titanium-zirconium-niobium alloy will have high functional durability under conditions of increased operational deformation, because this mixture regains its original form when heated, no matter how wrinkled, this property is very useful for bone transplantation. Titanium implants, which are compatible with the human body’s natural tissues, became the most popular bone replacements in recent years.
But even they have a disadvantage, being not as flexible as actual bones. This often leads to a disruption of mechanical-biological balance in the human body.
The bone tissue stops receiving the loads once the implant’s more rigid material takes over.
As a result, bone tissue cells die, as the body does not need them anymore. Therefore, the implant loses its connection with the bone; it comes loose and requires further replacement.