"Great service but the wait time for surgery is exhausting and painful"

I care for my mum who is on on an urgent waiting list for hip replacement surgery. The nurses and doctors were great when they assessed her, but it's been almost three months now with no date for surgery or updates. I thought that NHS Scotland had the ability to offer private treatment when it was urgent yet no one has offered this to my mum. She waited in agony and the painkillers do nothing now too ease the pain. Is it a matter of waiting and struggling till we get a letter? I have no idea who to speak to about this as when i call i get told she just had to wait. Her health is deteriorating day be day.