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[Kintaeryos]

If I understand it correctly, risk of complications isn't defined by how much you lengthen overall, but per segment. Would that mean that doing 4 cm on the femurs and then later 4 cm on the tibias is safer than doing 7 or 8 cm on the femurs only? Or does the increased risk from doing tibias (since most people agree femurs are safer) make them about equal in risk?

Also, does splitting the lengthening into 2 separate short surgeries/post-op recoveries like this make it more bearable? You lengthen 4 cm, a relatively small increase, then come back after a while and do the same instead of doing 8 cm in one difficult go?

[limby101]

That's a great question.
I think only very (very) experienced surgeons who had all these kind of combinations surgeries under their belt would have a decent answer.

[Kintaeryos]

Bump

[Robert Adam]

Lengthening the femur and tibia by 8 cm together is much safer than making 8 cm in one segment. The best solution is a 4.5 cm femur and 3.6 cm tibia

[Robert Adam]

You can do the tibia and 3 weeks later the femur. But some doctors tell you to wait 6 months between both surgeries.

[Kintaeryos]

Lengthening the femur and tibia by 8 cm together is much safer than making 8 cm in one segment. The best solution is a 4.5 cm femur and 3.6 cm tibia

Nice, so the increase in risk you get from introducing short tibial lengthening is still less than doing a large femoral lengthening with no tibia?

[Robert Adam]

I think that lengthening the tibia by 3.6 cm + 4.5 cm of the femur is a lower risk than 8 cm in the femur. The problem is twice the price.

[Robert Adam]

If you lengthen the femur by 8 cm, you may look a bit strange and have changed movement dynamics. Extension of the bones of both segments in a 0.8/1 ratio will be more natural.

[Robert Adam]

Remember the alpha angle. You will lengthen your bones by 8 cm, but you will grow 7.7 cm.

[Kintaeryos]

I think that lengthening the tibia by 3.6 cm + 4.5 cm of the femur is a lower risk than 8 cm in the femur. The problem is twice the price.

And I assume breaking the lengthening into 2 smaller parts with time apart them probably makes it psychologically and physically easier right?

[Beemer m3]

I'm not sure about safer but ur breaking additional 4 bones of the lower leg. Tibia takes a long time to recover too. I'm thinking 8cm femurs and an it band release. Alot of pt stretching. 4 months on crutches I'm assuming. Less pain going through another surgery.

[Robert Adam]

Lengthening 4 bones is more difficult physically and mentally than only 2 bones. But it is safer for your muscles and nerves.

[Robert Adam]

8 cm for the femur is the safety limit! You could be disabled for life. 4 cm for both bones is a very safe limit. Little chance of complications.

[Robert Adam]

Breaking the tibia is worse than the femur. Consolidation for 3.6 cm takes 2 months. Femur consolidation at 4.5 cm, takes 6 weeks. The 4th bones means better proportions and preserved mobility of movement.

[Beemer m3]

Save ur femurs for long growth past 4.5 cm. If ur spending 80k precicd 2 for 4.5 cm. That's alot and there's more meat in the bones that u cam extend to 6.5 cm.

[Kintaeryos]

Save ur femurs for long growth past 4.5 cm. If ur spending 80k precicd 2 for 4.5 cm. That's alot and there's more meat in the bones that u cam extend to 6.5 cm.

Sure but I am concerned about tibia/femur proportions and the increased risk from being closer to the safety limit for femoral lengthening. I would love to just have to do one surgery and get it out of the way forever instead of two, but I don't like the idea of being stuck with abnormal looking legs for the rest of my life.

[Kintaeryos]

Breaking the tibia is worse than the femur. Consolidation for 3.6 cm takes 2 months. Femur consolidation at 4.5 cm, takes 6 weeks. The 4th bones means better proportions and preserved mobility of movement.

But is it worse to the point where doing femoral lengthening closer to the safety limit is still safer than doing two short lengthenings well below the safety limit?

[Robert Adam]

8 cm for the femur is the limit. But the limit without complications is probably 5 cm.

[Beemer m3]

theres a guy on this forum that did 7 cm on his femur n 1.3 inches on his tibia. his name is height journey on youtube. hes pretty tall now. theres also alot of videos on youtube that does it on all four sides. there mainly like 10 cm+. 

[Kintaeryos]

8 cm for the femur is the limit. But the limit without complications is probably 5 cm.

OK, didn't know the "truly safe" limit was as low as that. So, for my last question, which of these two is safer:
7 cm femur
4 cm femur, 3 cm tibia

[Kintaeryos]

theres a guy on this forum that did 7 cm on his femur n 1.3 inches on his tibia. his name is height journey on youtube. hes pretty tall now. theres also alot of videos on youtube that does it on all four sides. there mainly like 10 cm+.

What do you mean by 4 sides? I thought it was 2 segments, femur and tibia, though  I have heard the term "quadrilateral" before. Sorry still a noob when it comes to LL and trying to inform myself.

[tallmen]

If I understand it correctly, risk of complications isn't defined by how much you lengthen overall, but per segment. Would that mean that doing 4 cm on the femurs and then later 4 cm on the tibias is safer than doing 7 or 8 cm on the femurs only? Or does the increased risk from doing tibias (since most people agree femurs are safer) make them about equal in risk?

Also, does splitting the lengthening into 2 separate short surgeries/post-op recoveries like this make it more bearable? You lengthen 4 cm, a relatively small increase, then come back after a while and do the same instead of doing 8 cm in one difficult go?

1 surgery is always less risky than 2 surgeries.

[Robert Adam]

There are different opinions. I think that doing 3 cm in the tibia and 6 months later 4 cm in the femur is better, than 7 cm only in the femur.

[Robert Adam]

3 cm for the tibia is safe, 4 cm for the femur is very safe. I haven't seen any comments about complications when the tibia is lengthened by less than 4 cm and the femur by less than 5 cm.

[Kintaeryos]

There are different opinions. I think that doing 3 cm in the tibia and 6 months later 4 cm in the femur is better, than 7 cm only in the femur.

3 cm for the tibia is safe, 4 cm for the femur is very safe. I haven't seen any comments about complications when the tibia is lengthened by less than 4 cm and the femur by less than 5 cm.

Thanks, I'll keep it in my mind when I have a consultation in the distant hypothetical future.

[Beemer m3]

What do you mean by 4 sides? I thought it was 2 segments, femur and tibia, though  I have heard the term "quadrilateral" before. Sorry still a noob when it comes to LL and trying to inform myself.

4 sides I meant by quadrilateral but didn't know how to spell it lol

[Kintaeryos]

4 sides I meant by quadrilateral but didn't know how to spell it lol

So 4 sides/quadrilateral means 2 segments * 2 legs?