Okay - you don't actually need to be here for some fixed period of time to get PR card, you can even have applied at airport (if that office was open).
So here's the situation, you have a choice to make, and in my view you can do one of two things:
-renounce your current PR status (it's an administrative procedure), and then have your citizen-spouse sponsor you under spousal sponsorship. The only substantial difficulty with this is that it might not fit your one year timeframe (but arguably shouldn't go too much over it, if you apply soon and otherwise straightforward application). Related to that, you would need a TRV to visit Canada in between or to arrive earlier, and you could be refused (if from an ETA country, should be no issue), and no eligibility for a work permit while you wait.
OR,
-you could try to re-enter Canada by either applying for a PRTD or entering through the USA, hoping either that a PRTD will not be refused or (if via USA land border) that they won't 'report' you for not meeting the residency obligation, etc. THEN - even if not reported - you will face varying degrees of difficulty in getting a SIN, health card, etc - which may or may not be difficult, just depends. AND even if this all works, you'll face a practical constraint of it really not being a good idea to travel for at least two years, and not applying for a new PR card until those two years are up.
I actually think in most cases that PRs should be very wary of renouncing PR status. Yours to me looks like one of the more straightforward cases where renouncing and reapplying would be more beneficial and reduce a lot of uncertainty.
That said: you have to decide and please inform yourself about the pluses and minuses, etc. You should not just accept at face value internet 'advice' including frm me. Some of these aspects mentioned above might only be incovneniences and minor. And I have made some assumptions that may be wrong (eg that your marriage won't be questioned as being a real good faith relationship), or might be unaware of other issues (I also assumed your spouse is eligible to sponsor). There are unforeseen circumstances that come up, like some spousal sponsorship or similar cases where the sponsor has passed away during the process, that are pretty much impossible to control for.
Good luck.
