How Much Can TE's Be Filled Beyond Their CC Amount?

Hi there-

I wouldn't worry about overfilling your expanders, as they have a large capacity for tolerance of this, and in fact it is often necessary in order to achieve adequate skin recruitment.

I would talk to your surgeon again about your pain...

Sorry to hear that you are having a difficult time with your expansion process.  Tissue expanders can be overfilled for a considerable amount -- they just will feel and look like rocks.  Overfilling a tissue expander is not an issue because they are only temporary devices.  Usually, I tell my patients that we will expand until they are slightly larger than the size they would like to be.  

As for the discomfort, If you can tolerate it, then hang in there.  Sometimes, the expansion has to be limited by what you are able to tolerate and not the desired breast size.  I would recommend that you discuss this discomfort with your surgeon.

Tissue expanders can easily be filled to more than twice their fill volume without rupture. They will feel very hard but the implant replacements will have a much more normal feel. If you are currently at 550cc with 650cc expanders, there is no problem pushing the fill volume to 750ccs or beyond.

I will often over fill tissue expanders for breast recontruction.  I always remind my patients to let me know at what inflation volume they are happy, so that I can match the final implant. 

The tissue expander is a temporary device, and we don't worry about overfill, even to fairly large volumes. The expanders become very stiff and firm, and progessively harder to push the saline, and will feel very awkward, though they are not 'your breast' and the permanent implants will be a vast difference.

Best of luck, peterejohnsonmd.com