Is it possible to have the rest of the capsules removed after the fact?

Dear jennyf1979,
it is hard to tell for sure without an examination. If you are considering surgery, I would suggest you consult a board-certified plastic surgeon. Only after a thorough examination, you will get more information and recommendations.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Alhtough it may be initial intention to remove entire capsule around implant, removal of posterior part of capsule, placed over ribs and intercostal muscles, can be lenghty, dangerous and bloody procedure. If there are no absolute indications for that, like ALCL or other local malignancy, it is best to leave that portion of capsule where it is. Hope this helps.