I want to echo what others have said—5 weeks is early and many things seem positive for you like a great ROM! I stopped PT at about 10 weeks when my OS gave me the green light to return to Pilates. I meet with my instructor (who in a prior life was a PT but became frustrated with the system—too many patients, too little time, and a growing belief she wasn’t able to truly help people) twice a week and for those 50 minute sessions I have her undivided attention. Every session is tailored to my knee on that day. I was at 107/0 when I resumed Pilates and now I’m at about 112/0. Extension never an issue but flexion coming back slowly but steadily. I no longer use a cane but if I’m on my feet a lot, and knee stiffens, I fall back into pre-surgery “limp.” I use Exerstrider poles and walk on our high school track so I can focus on my gait. Hopefully this gives you and others a chuckle since you mention a 5K: about three weeks ago it took my 9.5 minutes to walk a 1/4 mile lap. Today it was ONLY 9 minutes. But I do not have knee pain and at almost 15 weeks post-op I am grateful that I’ve experienced steady gains in flexion, strength, and a return to walking, biking (stationary bike), and swimming (my preferred sport). Keep fighting the good fight and be as patient as possible with your new knee!