Welcome @mpirruccel, Sorry to hear you are still experiencing a lot of pain all around the knee after a year since your knee replacement. It sounds like the doctor thinks the pain is due to a damaged nerve. I hope the nerve ablation provides relief from the pain. I used an exercise bike after my TKR and still use it for 30 to 45 minutes a day for 4 to 5 days a week. It really helped with my knee. You mentioned you used to cycle 100 miles a week but now 40 and then you have more pain. Do you do other leg strengthening and flexibility exercises in addition to the cycling? Are you scheduled to have the nerve ablation soon?