Hello,
I did LL with Dr. Betz some years ago (2012) and I'm thinking about doing the tibias now.
My results with Betz were spectacular so I'm considering him agian but of course I'm really interested in the new Stryde system.
It seems all the diaries here as well as the most well know doctors (e.g. Paley, etc...) say that Stryde is full weight beariing and you can walk without crutches during lengthening (something you cannot really do safely with Betzbone).
But I was reading the official literature of Stryde by NUVASIVE (the company who manufactures Stryde) and they categorically say that Stryde CANNOT withstand full weight bearing. Their description actually seems very similar to Betzbone. Check here on page 22:
https://bdhmedical.nl/wp-content/uploads/2019/06/Stryde-Tibia-Operative-Technique-1.pdf
Consolidation Phase
The Stryde implant cannot withstand the stresses
of full weight bearing. The patient should utilize external
support and/or restrict activities until consolidation occurs.
The consolidation phase should occur with the Stryde
implant in place.
Increase to unrestricted full weight-bearing only after
careful clinical and radiographic evaluation of the patient.
Full weight bearing is only permitted when there is solid
healing of at least three out of four cortices on the A/P
and lateral radiographs as determined by the physician.
I don't know what to make of this. Paley is one of the best LL doctors and he says Stryde is full weight bearing and you can walk during lengthening. And a lot of diaries here (with videos) show people doing just that.
But Stryde's manufacturer says otherwise.
What do you guys think?
STRYDE cannot withstand full weight bearing, according to NUVASIVE
Quote from: Medium Drink Of Water on November 18, 2019, 01:29:09 AM3 out of 4 cortices was how Dr. Peng decided you were ready to have the nail taken OUT. Yikes!
Interesting. Maybe NUVASIVE is more conservative than every other doctor?
What do you think about this discrepancy between Stryde's official literature (non full weight bearing) and the way doctors are advertising (full weight bearing)?
Quote from: Movie on November 18, 2019, 08:31:57 AMMust be a typo with Presice 2 because I've been fully weight-bearing and walking unassisted most of the time since 1 month post-op , and then 100% unassisted walking since month 1.5 post op, and even had some instances where I had to jump/step hard into my legs and feared my nail could've broken but nope, solid nails.
It's not a typo. Check the link I provided. That's the official Stryde guide for tibia surgery. I know that there is a lot of cases like you and Paley and other doctors say the same, but I wonder why Nuvasive says otherwise.
I wonder if it is a situation similar to what we had with Betzbone around 2010-2011, a little bit before I had my surgery. Everyone was saying that the nail was weight bearing and we had diaries (in the old forum) of people walking without crutches. But when in the end of 2011/beginning of 2012 Betz changed the protocol and asked the patients to not walk without crutches unless they had more consolidation (similar to NUVASIVE guidelines).
Quote from: hanshi on November 18, 2019, 09:59:37 AMPeople in this forum should be cautious of people shilling for these kinds of "doctors".
I'm not shilling for Betz. I just cited him because I did my first LL with him and it was successful.
But I hated to be on crutches for almost a year and I'd like to avoid that if I do my tibias.
That's why I'm interested on Stryde and curious about the difference between NUVASIVE's official position and the doctor's.
P.S. I'm only using the name BetzLandLiberator because that's the name I used in the old forum (as BtzLandLiberator, without the E).
Quote from: Movie on November 18, 2019, 10:03:11 AMDon't really care for checking the link bro, we all know stryde is weight bearing lol even our doctors say so, so possibly just something they're saying to not get sued incase someone has an issue and tries to sue for them "not being weight-bearing" like they said... the only thing I could think of
That's what crossed my mind to, but if that's the case the doctors would not say the same because they could be sued.
Anyway, i have an appointment with Dr. Mahboubian in December, so I'll ask him about NUVASIVE position.
Quote from: wanttaller on November 18, 2019, 03:08:16 PMHey, how much did you lenghten with Betz?
Because you said you were on crutches for almost a year.
9cm in the left femur, 10cm in the right femur (I had a 1cm discrepancy in the femurs.).
It took me 4 months to length then 5 months until I could get off crutches.
I felt strong enough to walk around 3 months post-lengthening, but Betz only gave me ok to get rid of the crutches at 5 months post-lengthening so I listened to him.
Quote from: Medium Drink Of Water on November 18, 2019, 05:07:24 PMPeople weigh different amounts, and most of the body's mass is above the legs anyway. So maybe "full weight bearing" isn't a claim anyone should make about a device alone.
I'm wondering if the NUVASIVE point of Stryde not being weight bearing is only for tibia (the .pdf I linked above is the instructions for a tibia surgery, not femur).
Do we have any diary here of people doing Tibia with Stryde and walking during lengthening?
Quote from: hanshi on November 18, 2019, 07:46:43 PMNo, I have the Nuvasive Stryde manual for femur and there's written exactly the same. Your confusion is due to the bs which has been spread all those years by Betz. No serious manufacturer will simply write his implant is fully weight bearing without any restrictions because he will be liable in case of problems.
Interesting. Can you share the link with the femur manual?
Quote from: hanshi on November 18, 2019, 07:46:43 PMOnly Betz has the brazenness to state his nail is fully weight bearing but at the same time doesn't accept liability in case something happens. You were simply very lucky nothing happened to you in 2012.
To be fair, Paley and Mahboubian also say that Stryde is full weight bearing, no?
I know that some patients had a hard time with Betz, but that wasn't my case. He was super cautious with me because I had the 11mm Betzone (the older model) and lengthened a lot (against his advise of stopping at 
. That's why he only gave me the ok to walk 9 months and half after the surgery.
Quote from: Montreal172 on November 19, 2019, 06:49:58 AMBut then what's the difference between STRYDE and Precise 2.
As I taught full-weight bearing was the selling point.
Well, Stryde seems to be much MORE weight bearing than Precice, that's for sure.
But - considering NUVASIVE official guides - it seems Stryde is much closer to the current Betzbone than people would like to admit: a nail that can be full weight bearing only if you are very careful.
But that's just a guess. I'm really puzzled by the fact that NUVASIVE position is different from Paley's, specially because he worked with them to develop the nail.
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