Any thoughts on whether this is a mistake...

My husband has osteoradionecrosis and his jaw has now fractured. The fracture was diagnosed a week ago. He will have a bone resection of appox 33-40% of his mandible and a titanium plate will be inserted in its place. The first date available for surgery is Dec 23, a month from now, but that is two days before Christmas. He chose to postpone until Dec 30, figuring if he has to wait for 5 weeks, he may as well wait for 6 weeks. The surgeon doesn't recommend it, but said that he understands. (He is very much in demand as he is a well known expert in this field, so he is worth waiting for.)

Of course we would rather wait until after Christmas, but does anyone have any thoughts on whether this is a serious mistake?