Posted 2/12/2017 11:44 PM (GMT -8)
Happy Living,
Welcome to the forum. I'm sorry your dad is not getting pain relief. Where does he live? If there is inflammation in his knee (s) a cortisone shot might give him instant relief that could get him back on track until he can find a longer term treatment.
He's sure lucky to have you watching out for him from across the miles.
Beth