Hey girls, I don’t know if this is any help to anyone but this is something that really messed with my head in the run up to surgery as you see so many different stories of how partials develop and how unders develop etc etc……. So I asked Mr Traynor on the day of surgery and he said 100% they are the same thing in this country! ‘Unders’ are no longer performed in the UK – where the implant is placed completely under the muscle – but some surgeons will still refer to the implant going ‘under’ the muscle even though technically they will be partially placed! So, if like me you were told the implants were being placed under the muscle, then you can now know you’ve had partials as I found out after asking this question ☺️ Hope this helps! ?? xx