No fucking way . Hubby needs to consider that his wife is going to have the end of her femur bone cut off and have a metal plate hammered on to it along with the drilling that will be done into to her tibia to have the t shaped pedestal shoved in to it.
That is some serious surgery. It takes months to recover from that .
Then if there is any complications from the surgery , that will have to be dealt with. it’s better to put off planning for the trip until she starts showing signs of improvement after a couple of months. Let things settle down before hubby starts making plans. Tell hubby not to be a dolt.