Husband got 2 screws in kneecap due to a split, 1+yrs w/o relief & doc said next step is reversing surgery &breaking off split piece, 2nd opinion?

More info. Would need to know what problems your husband is experiencing as well as view his xrays. If there is concern about the recommendation, i would get a 2nd opinion.
2nd opinion. If the split is small then removing it may be the only option. A second opinion is always a good idea.