FT record for the maximum implant lifespan before/without revision?

[GayPornStud]

If you look at the Titan Coloplast website, it says "lifetime warranty." Is that for my lifetime or its lifetime?

My doc told me it is nearly impossible to "wear out." But everything mechanical is subject to wear over time, right?

My Grandpa was still very active with my Grandma until their early nineties. Based on that, at 50, I have about 40 years of sex remaining. I need this to last! LOL

[Biker60]

There is a implant surgeon at Einstein medical in Philadelphia. His youtube videos give the implants 15 years life expectancy. Which I think is way too generous.

[Lost Sheep]

There is a implant surgeon at Einstein medical in Philadelphia. His youtube videos give the implants 15 years life expectancy. Which I think is way too generous.

It is natural that earlier implants would have shorter service lives than more recent models.

(NOTE: these statistics are realistic, but not real, only pulled out of thin air from vague memory of what I have read and for illustration purposes only)
Inflatable Implants implanted 20 years ago failed about 12-15 years ago. Those had a service life of 5 to 8 years.
Inflatable Implants implanted 10 years ago failed about 2 to 0 years ago. Those had a service life of 8 to 10 years.
Inflatable implants implanted today do not have a statistical failure rate in-vivo, but I expect the 15 year service life is not unreasonable.

Caveat: Never buy version 1.1 of ANYTHING.

[Lost Sheep]

If you look at the Titan Coloplast website, it says "lifetime warranty." Is that for my lifetime or its lifetime?

My doc told me it is nearly impossible to "wear out." But everything mechanical is subject to wear over time, right?

My Grandpa was still very active with my Grandma until their early nineties. Based on that, at 50, I have about 40 years of sex remaining. I need this to last! LOL

Most "lifetime" warranties are for the lifetime of the original owner. Subsequent owners do not get the warranty (unless there is a transfer of warranty, which usually would involve a fee).

So, a good piece of advice is to NEVER BUY A USED IMPLANT!

[dg_moore]

Also, never buy sushi from a vending machine

[David_R]

Subsequent owners

[TANGERINE]

AMS survival val rate (ji et al).png (36.65 KiB) Viewed 1040 times

Figure 1 (above) Longevity of Implant. Here you see the longevity of the implant, basically, based on the study, 66% of the implants were still good and working at 16 years, it looks like 75 % (3/4) were still working at 10 years.

this came from a paper written by Dr Ji et al

reference:Korean J Urol. 2015 Jun; 56(6): 461–465."Long-term survival and patient satisfaction with inflatable penile prosthesis for the treatment of erectile dysfunction"
Yoon Seob Ji, Young Hwii Ko, Phil Hyun Song, and Ki Hak Moon

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4462637/

[Lost Sheep]

AMS survival val rate (ji et al).png
Figure 1 (above) Longevity of Implant. Here you see the longevity of the implant, basically, based on the study, 66% of the implants were still good and working at 16 years, it looks like 75 % (3/4) were still working at 10 years.

this came from a paper written by Dr Ji et al

reference:Korean J Urol. 2015 Jun; 56(6): 461–465."Long-term survival and patient satisfaction with inflatable penile prosthesis for the treatment of erectile dysfunction"
Yoon Seob Ji, Young Hwii Ko, Phil Hyun Song, and Ki Hak Moon

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4462637/

And it looks as if the failure rate is slowing down. That would indicate that those that would fail earlier than 10 years did so and the rest might be expected to last much longer (until actual wearing out starts to end their service lives).

I have not read the study, so perhaps you can tell me how the authors controlled for the "wearing out" of the owners (as in, those who died still in possession of a fully functional implant - thus closing them out of the statistics). That would alter the calculations, I think.

[TANGERINE]

thanks for pointing this out lost sheep.

Yes, it will skew the statistics if patients die before needing a revision, since one would have no idea how long it will be before the revision would have been needed. The curve displayed in figure 1 is a kaplan meyer survival curve (in this case, it is survival of the implant). If a patient dies for example at month 145, then kaplan meyer MAKES THE ASSUMPTION that that implant will last at the average length of time for the remaining study members at month 145. In other words, if the average implant lifespan at month 145 is, let's say, 20 more months, then the patient who dies at month 145, with a functioning implant, will be tabulated as having an implant failure at month 165.

Statistics, a tricky science, but yes you are correct that the death of a patient means that "a statistical assumption" will need to be made.

TANGERINE

PS: I had to look up how kaplan meyer works, and pasted below is the more accurate technical description of how deaths are handled when calculating implant survival:

Kaplan and Meier [14] proposed that if we consider that the risk of death of patients whose observations are censored is equal to that of the patients remaining in the study, then we can estimate the survival at time t by the cumulative product of the conditional probabilities of surviving each time interval until the chosen time.