My Dad had a knee replacement yesterday, before he went in everything was explained to hospital as to his condition & everyone was happy. We prepared him as much as we could but he does not fully understand what is going on. The op went well but in the evening he became restless trying to get out of bed even though there were sides on it by trying to slide to the bottom. He is not responding to instructions or understanding what is going on. He had a restless night & this morning managed to fall out the bottom of the bed opening everything up resulting in him needing to go back in to theatre this morning. We have discussed sedation with the hospital but they don't want to go that way. Has anyone any suggestions in how we can help him. We are now thinking about having a member of the family with him 24 hours a day to try & keep him calm. My poor Mum is at her whit's end to the point of a break down with it, we just don't know how to handle him.......