Meniscus tear at posterior root- trim out or removal?

I have a medial meniscal tear at the posterior root and significant runner's knee issues. I am a 56 year old female. I am in the process of setting up surgery. One surgeon speaks of removal of the meniscus while another speaks of trim out. What is the difference for me and how do I choose the procedure which will give me the best results? Is it possible to actually see and evaluate the full extent of the damaged cartilage on the MRI?