Do you actually need them?
Apart from the risks of surgery, is there any benefit to retaining them rather than hysterectomy? Would watchful waiting with regular checkups (eg scans, hysteroscopies) have any advantage over surgery?
(About 8 years ago I had a benign tumour removed from a different part of my body and my body has never refilled the gap left by it, despite it not belonging there in the first place. A relative had their spleen removed around the same time, and has since had a lot of problems due in part to the way their internal organs did/didn't adapt to the gap it left.)