Our English Mastiff name Thunder still have an elbow problem. My husband told me the cause of it and it was because of his engrone hair. So whenever his elbow pads worn out, I always make a new pair that way we don't have to worry about having a blood spot in the floor. He seems very happy and contented, he is such a big boy! This is a photo of him laying down in the living room while his master is playing games online.