Metallic implants used to restore fractures are additionally extra resilient than bone, which might be problematic since they take in exterior forces. The bone that kinds round them subsequently does not expertise pressure throughout train and so can begin to die. Kumar and his colleagues subsequently additionally needed a metamaterial that had the identical form and properties as might be discovered on the joint ends of lengthy bones, for instance these in our legs and arms. Right here, the inner bone has a porous and honeycomb-like construction, often known as trabecular bone, that gives power and the power to soak up shocks.