In my opinion; If you have the time and finances, consider opting for increasing 4cm in Femurs + 4cm in Tibias or a different combination like 6cm + 4cm. This approach would bring you close to your desired height while maintaining a similar proprioception. While uniform proportions may enhance aesthetics, it is commonly noted that proportions are not a significant concern for the majority of LL patients, though avoiding overlengthening is crucial.
When focusing solely on Femurs, exceeding 8cm of lengthening could lead to limitations in certain movements or necessitate adjustments. The extent of these limitations is uncertain, as patients typically undergo Tibial lengthening not for functional reasons but primarily to increase height.
For your scenario, a prudent strategy would be to aim for 6.5cm lengthening in the Femurs and reassess thereafter (you may find satisfaction with 5cm).
Regarding Tibial lengthening, ensure you select a highly experienced surgeon, as there have been reports of numerous unfavorable complications associated with Tibial procedures. Proficiency varies among surgeons, affecting the surgical outcomes significantly.
