Ask your surgeon how he knew for sure he got it all out? Ask him if he had a pathologist in the OR with him to analyze samples of intestine in realtime as he was cutting so he knew for sure he is getting all the crohns? I bet you will find out that he did not do this. That is why you have active disease still left inside you. Sloppy surgery!!!
Many suregons are arrogant and think they know everything, and they assume that they can get it all just by looking with thier eyes, or just by cutting out a lot intestine in hopes of getting everything. In all actuality, there is no way of knowing for sure if you got everything unless there is a pathologist right in the OR that can analyze samples in real time so he can tell the surgeon when the sample come back clean and free from disease. This is the ONLY for the surgeon to really know he has cut it all out.
My cousin had a resection three years ago where they took out 6 inches of illium and the valve, and her surgeon had a pathologist in the OR with him while he was cutting. The surgeon would cut small portions of intestine upstream and downstream of the diseased intestine and give it to the pathologist to look at. He did this utill the pathologist found no more active disease. At that point the surgeon knew he got everything and closed up.
To this day, my cousin is symptom free of CD .