fulkerson vs oats

I have been rehabing from a 'scope since 11/00. Since 1/01 my Dr. and I have struggled to to convince workman's comp. Dr to agree to a fulkerson procedure. Now that I'm scheduled, he wants to see me and change the plan to an oats I understand both processes but I don't understand what the oats will do for me if we don't fix the laxity and wandering knee-cap. Any impressions or insight? Thanks