I know that the standard wisdom is that you will not reach the VED size with an implant. However, I'm not sure I fully understand why. I don't have an implant, and haven't met with an implant doc, though I have an appointment to do so, so I really am not well educated about this.
With a normal erection, and with a VED, I understand that you get engorgement of both the cavernosa and the spongiosum, which includes the glans. I understand the implant only works on the cavernosa, so you potentially lose the size that results from the engorgement of the glans (sometimes cited as 1/2 to 1/4 inch). Some implantees do report retaining or regaining some ability to engorge the glans with arousal and stimulation even with the implant, so to the extent that happens, it would mitigate the loss here.
However, as far as the cavernosa goes, Dr Douglas Milam, on his website, states "A penile implant expands the patient's own erectile bodies until the inherent elastic limit of those erectile bodies is reached. At that point the penis is rigid and cannot expand further. The implanted cylinders would be capable of expanding further in almost all cases, but are limited in their expansion by the elastic limit of the patient's own erectile bodies." (see
http://milamurology.com/patient_informa ... f_erection).
If the limit in size of an implant is the patients own erectile bodies, then I would think that the same limitation would apply to pumping with a VED, as far as the cavernosa goes.
Therefore, I would think the implant should be able to produce the same size as the VED, except for the loss due to the engorgement of the glans.
Of course, many of us have lost potential size, even with a VED, due to disease or atrophy. So I understand that many never regain their pre ED size. But, the comparison we're talking about here pre-surgery VED vs. post-surgery implant, both subject to whatever disease and atrophy limitations exist.
What am I missing?