Aparently not, and that was his reason for having it. He's hoping he should be able to do more than he did before (though it's not clear if he means more than if he hadn't
had the operation, or more than if he hadn't
needed it). He says he needs three months to recover fully, but that he was walking the same day and sans crutches in ten.
He blames it (probably correctly) on the fencing, as well as the "jumping around on stage". Maiden always seemed to lead the charmed life, which I presumed was because they looked after themselves so it's been sobering to discover that even Bruce is not immune to the ravages of time - however fit he may be.
You can't win, can you? You get one set of problems if you don't move enough and a different set of problems if you do.