Ditto Holly.
Cooked bones, especially beef bones which are much heavier and denser, are not wise to feed. I feed raw bones to my dogs and they are proficient at eating them as a result. And with that said, I hold a steak bone and make them rip and tear meat scraps from the bone and do not let them have the bone itself.
As a matter of fact, raw beef bones are not optimal to feed - again due to density and weight. They can still shard and are sharp when they break. I feed beef ribs and when they get the bones clean, and gnaw a little bones off the ends, I take them away. Just something to consider.