is 8cm for tibia even possible with knock knees?

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I have Long Femur and short Tibia, so i want to lengthen my Tibia more than Femur


lets say i would ONLY do 8cm for Tibia, would it be possible to recover without constant knee pain?


Is it even possible with knock knees

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Knee pain has to do with the incision of the nail through the knee. If it is incised through hip or pure external, it's not a problem (in most cases).

The problem with 8cm in tibia is you will most likely need achilles tendom lengthening and many people say ATL screws you.

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Knee pains can occur even without IM nails
When bones are lengthened, the tension of ligaments increase also and can cause any joints pain and arthritis

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According to Dr. Yasser in Cyprus,
 he offers and his thoughts on the knee problem issue with LON/LATN/internal tibias and this was his reply.

"Yes, Precise 2. I do in my center in Cyprus as it is not available yet outside USA and
You are right about pain after tibial nailing, however, my master degree was about that and I personally do not split the patellar tendon at all to introduce the nail to avoid this chronic pain problem. I remove it laterally using a special tool till I introduce the nail then return it again to its place. Generally, I like more external for tibia while more internal for Femoral bone."

Dr. Parihar, expert in tibia construction（Lon and pure external), In his website, the advantage and disavantage of pure external and Lon could be found. Which is safer also could be found. If using Precice nail he would do it in femur.

Quote https://sites.google.com/site/cllrpatients/faqs/cosmeticlengthening

Dr. Franz, expert in tibia construction（Lon /Latp)and pure external)also said about 15% knee pain chance with Lon/Latn/Internal In tibia. It could be found in Dr. Franz post in this forum. Considering the pure external  safer than Lon.

Dr. Pili and Dr. Catagni in Italy , they are expert in tibia construction, but still using pure external no matter they could use Precice nail or Lon.

Dr. Yasser worked with Dr. Paley and Dr. Catagni for many years, which could be found in Wikipedia And Dr. Li and Dr. Parihar just took part in Dr. Paley' training for 1year.

https://pan.baidu.com/s/1vi3X9AZOItHaleMQUSDQ1A