Update from Junkim021789 dairy regarding the PRECICE 2 device.
"Update: X-ray showed that i grew 4mm and 3mm out of 5.25mm. This means the device isn't lengthening as well as it should. I asked dr.lee and he said there isnt enough callus to cause any resistance against distraction. His theory is that my muscles are tenser from the lengthening and that is slowing down the device. This sounds about right, because when I was lengthening my femur with precice1, it used to not lengthen as well starting 3cm ish. It didn't really cause any problem for me cause my target for femur was 3.5 and it still is not that big of an issue cuz my target for tibia is 4-4.5. Right now, Im at 3cm and I think the device will hold up at least one more cm before my muscle completely overpowers the force of distraction. However, if u plan to do like 6 or higher using precice, be prepared to deal with unforseen circumstances. But most patients with target of less than 5 came out very satisfied.
This issue seems to be very common among precice patients, both 1 and 2. People who have reached 6 or higher (there were 3 on femur that i know personally) were either super flexible naturally or had months of preparation stretching the crap outta their muscles before the surgery and of course during the lengthening phase.
Precice definitely has its upside. Scars very small and the process is nearly pain free, though some patients may disagree. However, it seems to have some flaws especially in the later stages of lengthening. "