I am having knee replacement surgery in July any thoughts on how to build the muscles around the knee. I guess I’m asking if some well-placed injections will help. I’m very limited in what I can do to build knee muscles. Time has just taking it’s toll on the muscles around my knees and I’ve got to build them up. I am on TRT regiment now SubQ Abdomen biweekly, T levels 700 after 2 months of use. I have never used T before so I am ignorant and how to use it best.