For example off the top of my head Arlovski and Franklin both have steel/metal plates screwed directly into the bones in the hand. As paige VanZAnt just got a rod put into her arm. Why are solid implants in arms, legs, knees and plates in a fighters head ok to compete with? I don't know what kind of difference it may or may not make which is why I ask the Sherdog world ...is it an advantage at all? If it is how do they allow it.