not sure what your surgery was but having trouble walking at times I have found a cane helps me on and off rides esp the ones with a moving ramp. not saying to not use walker but to use cane in addition to walker. the one ride I would be worried abour your walker getting to you after ride would be Pirates as load and unload are not close. know I have had to switch to wheelchair from
ECV and they had chairs there to use just for that ride. plan on asking CM at beginning of ride as to what you should use there. in fact I would as at most rides to see what they want you to do. CNs are there to answer questions like this bet you are not the only one to ask that