I have almost always cut while sitting down, mostly because I have difficulty standing for long periods of time. I had my old kitchen table, which was very large with all the leaves in it, but after moving we did not have room for it, so I now use a banquet type table, where I can adjust the height, or my dining room table to use for cutting and sewing. I find that I may have to take breaks more often, but sitting is the only way I can manage right now, especially with my arthritic joints. I can sympathize with your problem, as I had shoulder surgery a few months ago. I hope that you will start feeling better soon and be able to do things the way you are used to doing them.