Can a sliding genioplasty be partially "undone" (slid back the other way) safely?

I had a sliding genioplasty operation where my chin was reduced vertically and pushed backwards horizontally and fixed with a screw. However, while I like how it's shorter vertically, my chin looked much better when it protruded more. Is there a possibility that I can make it protrude a bit more than it does now with a sliding genioplasty again? If yes, is there a possibility of making it even shorter slightly at the same time? I don't want an implant in my face or anything fake.