There are many problems to consider. It would be much easier if your friend only had long legs and short joints. If the joints are not well developed, it will be more complicated.

Moreover, is the thigh short or the calf short? The extension of thigh may affect the function of knee joint, and the extension of calf may affect the function of ankle joint. These are all issues that need to be considered.

The cost of the operation is hard to say. 30,000 to 50,000 can basically be won here in Beijing. But it must be considered that this operation is very painful. The operation itself is nothing, but the long process is quite painful.