Instead of a knife, I would recommend getting one of those meat slicers/bread cutters that you sometimes see in delis - some examples in the following link: http://www.chefknivestogo.com/foodslicers.html
I freeze meat and use these machines to thinly cut beef for Asian fondue. It is better than buying the frozen ready prep meat because I can determine the quality of the meat that I serve. I am not sure about the bone part but I have found the machines to be quite effective with frozen meat.
Any of the interdiscounts, home appliance stores should have at least a small selection.