Hello and welcome to HCM,
I do understand your concern about the surgery not giving you a permanent cure. The scar tissue in these cases is notorious in coming back and your symptoms will not get better.
What you need to understand is that any surgery for the treatment of sleep apnea
is effective only up to a certain extent and it is usually in the range of sixty to seventy percent symptom relief.
The only two most effective treatment of sleep apnea first is weight reduction and second is the CPAP machine use.
If the scar tissue is bothering you a lot only then you need to get them removed by another surgery but that will not be the definitive treatment which is what i explained earlier
take care and get well soon
Dr Sriram nathan