Do you think I can hide this surgery

Edit Post

I'm about 168cm from UK. I wore lifts+sport shoes in university that gave me 1.2 inch (so people think I am 170-171), then wore lifts + thick soled shoes that gave me 2.2 inch (so people estimate I am 173). I have never worn shorts around people (for 4 years now), so my ankles have never been revealed. I'm planning to do:
- 0.3 inch more of lifts before surgery
- 4.5cm of lengthening (Yes, I am contented this life being 5'8, I do not need the full 5 and I think that is too obvious)
- Swap to barefoot shoes ONLY after surgery (3mm soles)
- I have met some university friends after university, but when I met them, I was already using 2 inch lifts, they never noticed my height increase as it was gradual.
- My work friends have only ever seen me in 2 inch lifts
- I won't optimize my posture for height
- If people ask, I will say I corrected forward head posture, slouched shoulders and lumbar curvature (I did have these things to some extent)

Do you think I can hide it?

Edit Post

For clarification, I moved to the US to work right after university, and am returning to UK. Hence, most of my social circle in the UK has not seen me for 4 years. Do you think I can hide it from them?