Dear NJ Runner,
I think it is normal for you to still have swelling at this stage. I had swelling when I exercised that leg for many months. Whoever told you that you’d be back to normal in 3 months was mistaken. It took me 3 months to be able to walk 5K, and it took me a year to be able to run. The recovery period for a THR is about 1 year, and full bone remodeling can take 1-2 years. I am 22 months out and still experiencing improvements. You are more than 3 months out, so you can go to PT for strengthening exercises, as opposed to gait training. I went back to PT at 7 months post op, because I could not run. I remember my PT expressing his complete annoyance at how many surgeons discouraged their patients from PT, as it is essential to get the best recovery that you can.
Good luck, and keep us posted.