Cobalt Chrome/Cobalt Chromium- PRECICE & SYNOSTE

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Weight bearing is so important! 682 is right about those risks are negligible.

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Synoste and Nuvasive are huge companies that probably had 1 or 2 "professional" researchers look into this toxicity issue and rule-it out before they invested millions in developing the tooling required to produce these state of the art lengthening nails. I'm sure they know what they are doing, and why they think it's time to consider a superior alternative to titanium for manufacturing lengthening nails. I wouldn't be surprised if they eventually end up with a hybrid nail made of both materials to cut down on the cost.

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STRYDE

The cosmetic lengthening version of this new Cobalt Chrome nail by NuVasive will be marketed as the STRYDE. Release date will be in approximately 6 months. A true game changer in cosmetic lengthening. Full weight bearing with crutches from day one, complete freedom of mobility, possible continuation of employment with minimal downtime (office work), millimeter by millimeter accuracy with screen read out on ERC, reverse function to prevent runaway nail or treat complications.

NuVasive: https://www.nuvasive.com/

Synoste: http://synoste.com/

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http://www.limblengtheningforum.com/index.php?topic=4736.msg80257;topicseen#msg80257

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Quote from: Stadiometers on January 06, 2018, 04:09:08 PMA true game changer in cosmetic lengthening. Full weight bearing with crutches from day one

Game changer... but still need crutches huh?

Heard of the Precise or Fitbone? They do the same things.

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Quote from: RealTrump on January 08, 2018, 07:05:26 AMGame changer... but still need crutches huh?

Heard of the Precise or Fitbone? They do the same things.

Wrong.
With current version of precise and fitbone you can't walk at all till you stop lengthening (about 3 months) and after that you can start to walk with crutches.
With stryder and weightbearing from day 1 you would walk with crutches so the difference to anyone that knows how LL works is huge.

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Quote from: RealTrump on January 08, 2018, 07:05:26 AMGame changer... but still need crutches huh?

Heard of the Precise or Fitbone? They do the same things.

You will not need crutches with STRYDE. Crutches are merely part of the safety protocol. With PRECICE and Fitbone your weight bearing and mobility is severely restricted. You need crutches or the lengthening nail will break. That is a distinct and vitally important difference.

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Quote from: ouroboros on February 11, 2017, 06:16:16 AMSynoste and Nuvasive are huge companies that probably had 1 or 2 "professional" researchers look into this toxicity issue and rule-it out before they invested millions in developing the tooling required to produce these state of the art lengthening nails.

Synoste is not huge, and they don't have much experience either. Check their web page:

QuoteContact us

SYNOSTE is a small dynamic team; we are passionate about the development of our first product to help people suffering with Limb Lengthening Discrepancy, so we would be very happy to share information with you during our journey.

They're a startup, which means they could significantly improve the state of the art (Oura is another Finish startup that made sleep tracking much more precise and convenient), or they could flop.

Quote from: Body Builder on January 08, 2018, 01:23:13 PMWrong.
With current version of precise and fitbone you can't walk at all till you stop lengthening (about 3 months) and after that you can start to walk with crutches.

From http://www.paleyinstitute.org/centers-of-excellence/stature-lengthening-center/distraction-phase, Weight-Bearing Precautions:

QuoteDuring lengthening we allow WB using crutches or a walker and unweighting of the legs using the arms. The amount of WB allowed depends on several factors: the weight of the patient, the diameter of the rod, and the bone being lengthened. For the largest diameter, PRECICE 2, 12.5mm, we allow up to 75lbs (34kg) on each leg. This means that when a patient is standing on two legs with two crutches on the ground, they can take up to 150lbs (68kg). However, when walking and transferring load from one leg to the other, the patient must use two crutches on the ground and unweight themselves to the 75lbs (34kg) weight with each step. Patients must never walk with one crutch during the distraction phase, no matter how much they weigh.

Although I'm surprised some PRECICE 2 patients don't seem to be very aware of this.

Here's ProgramDude:
QuoteI spent a lot of time in the pool. Almost no time walking in crutches as I was told it wasnt safe- until much later Paley told me it was ok and that the others were wrong.

Other Paley patients (Purushrottam) have been walking with crutches, and 2.5 months after the surgery, started walking up and down stairs with crutches.

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Quote from: fivefive on February 10, 2018, 01:35:19 AMSynoste is not huge, and they don't have much experience either. Check their web page:

They're a startup, which means they could significantly improve the state of the art (Oura is another Finish startup that made sleep tracking much more precise and convenient), or they could flop.

From http://www.paleyinstitute.org/centers-of-excellence/stature-lengthening-center/distraction-phase, Weight-Bearing Precautions:

Although I'm surprised some PRECICE 2 patients don't seem to be very aware of this.

Here's ProgramDude:
Other Paley patients (Purushrottam) have been walking with crutches, and 2.5 months after the surgery, started walking up and down stairs with crutches.

68 kg for men like me who are 90kg is nothing.
So to prevent nail broking you can't walk during lengthening even with crutches. At least this is what all the doctors who use precise 2 suggest as far as I know.
About 1 month after you stop lengthening you are ready to go with crutches but if you think that a 90kg man is safe to walk (even with crutches) with nails that support max 68kg, I don't think you are right.
But with Stryde all these will not matter.

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Quote from: Body Builder on February 10, 2018, 01:52:04 AM68 kg for men like me who are 90kg is nothing.
So to prevent nail broking you can't walk during lengthening even with crutches. At least this is what all the doctors who use precise 2 suggest as far as I know.
About 1 month after you stop lengthening you are ready to go with crutches but if you think that a 90kg man is safe to walk (even with crutches) with nails that support max 68kg, I don't think you are right.

I'm not an LL surgeon, so I don't know how safe it would be to walk with crutches rated for 68kg max if you're 90kg. But keep in mind that when walking with crutches, you unweight the legs using your arms, so the weight you put on the crutches will be lower than 90kg. How much lower, you could estimate by doing assisted dips, something that you Bodybuilder are probably really good at.

I'm 74kg now and will be losing some weight until the surgery and during the recovery. I've also been training my triceps for the past two months and do 100 assisted dips (10 sets x 10 reps) every other day, decreasing the assistance progressively. I'm at ~13kg / 30lbs of assistance now for the whole 100, which is (sort of) the weight the legs would take. Comfortably below 68kg, and that's for the whole 100 - I'll see today at the gym how many unassisted dips I can do without break.

Anyway, I'm not a doctor, so I've asked Dr. Paley about this, keeping in mind that I'll be doing tibias+femurs at the same time (so 2 nails / leg). He said,

"For short distances inside buildings you will likely be on crutches or a walker. For longer distances you will elect to use the wheelchair e.g. going to the mall."

Quote from: Body Builder on February 10, 2018, 01:52:04 AMBut with Stryde all these will not matter.

That would be really great. From what I've read on the forum, the best exercise for recovery is walking.

For those doing LL before STRYDE though, I would encourage double checking with the surgeon and the PT team how safe it would be to use crutches or a walker, given their weight.

And get to work on those triceps anyway!