How safe is 7 cm tibias with precice

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I am interested in lenghtening tibias by 7 cm using precice, but I've heard various points that this amount is not safe. For one, paley institute writes that most
patients using precice will not tolerate more than 5 cm in the tibias (and it may cause equinus contracture), while dr. Yuksel Yurttas claims 6.5 is the limit and many others 7 cm.

So in general, how reasonable and safe is it to lenghten 7 cm tibias with precice, and what possible complications depending on the severity could there be? If those are quite managable with physiotherapy and some hard work, I think I am willing to take the risk.

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Thanks for the reply. However, is it theoretically possible to lengthen that much with precice, or is there some kind of limit to it as well (I know it's possible with LON)? Moreover, what is your personal opinion on how manageable those complications are?

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Is it typically the case that the amount of lengthening is agreed upon before the surgery, or is it possible to make adjustments afterwards if it appears feasible? I was wondering about situations where the lengthening procedure goes well and you might surpass your initial goal. Isn't the lenghtening part fully on your own or do you still have to get doctor's approval?