TEP, Auxetic, upsizing

[splitpeach]

There's talk of undergoing Auxetic cuts or Tunica Expansion Procedure and upsizing implants on revision.

What I don't understand here is that the surgical capsule is formed on the first implantation (as there was obviously no foreign body there before). Upon creation, I understand once fully formed it can no longer be modified.

So then how can it be possible that any further expansion can happen whether by surgical cuts or by a larger implant? Surely, after first implant, whatever you achieve in those first few months is what the surgical capsule will be limited to and what your maximum size is forever?