Your PT is wrong. If you overdo it and make your leg swell more, it will irritate and inflame your healing, wounded tissues and that will slow down your recovery.PT says you can't really overdo, it just swells if you do, but he's telling me to try to push it before the next TKR in 11 days to get the new one as good as possible.
You cannot make your first knee heal faster by working it harder. Your leg has suffered a lot of trauma during the knee replacement and it needs time and gentle treatment, so it can heal.
Think about it - does constantly irritating a cut on your hand or arm make it heal faster? No. It takes as long as it takes, to repair the damage.
The first knee replaced doesn't need to be super-strong when you have the second replacement. After all, people manage well who have two knees replaced on the same day. You will be having a period where both knees are recovering at once. That's all.
New Zealand
![[Bonesmart.org] In between staged 1 month replacement both knees [Bonesmart.org] In between staged 1 month replacement both knees](https://data.bonesmart.org/attachments/44/44002-b053aa8010c58e8ab52e0ad9163dfcc8.jpg?hash=sFOqgBDFjo)
....I'd like to smuggle a cold IPA into the hospital to wash the next one down (totally kidding).