The manager appears to be quite agile even after the 20cm increase. I wouldn’t have been able to tell that he had undergone such a procedure just by looking at his mobility.
It might be prudent as it greatly reduces the likelihood of long-term issues. However, performing limb lengthening between 3.2-4 cm on the tibia should be paired with 4-5 cm on the femur to achieve a visible end result.
Height Journey underwent a 3.7 cm tibia procedure following a 7 cm femur surgery; you can gain some perspective by reading his tibia diary:
