he is still in a very early phase of the healing. things are going to happen that seem not to make sense and spiking fevers in the hospital are not uncommon but of course the docs should keep an eye on it. if it keeps up in a couple more days over 101 then it could be of concern but you both have to stay positive!!! thats the key and get him up and walking as much as he is able! i wouldnt worry about
the ileus as much tho as it is still early and he will get to where he needs to be :) you guys just stay confident and positive and all will get better even if there are a few setbacks :)
God Bless!!!!