How successful is Microlaryngoscopy? (Vocal Chord Procedure)

When I was 5 years old, I underwent an in-depth eye test, for which I was given anesthesia. Unfortunately (as per the doctors at that time), my parents were told that the instrument through which the anesthesia was given touched my vocal chords and damaged them or I guess maybe due to some side effect of the anesthesia.

In my early school days, I had a lot of problem in clearing my throat and had to speak loudly and put more pressure on my vocal chords. My voice was very hoarse.

Gradually, I learnt to live with it and maybe after I reached puberty, my vocal chords got a bit better. However, I still have hoarse voice and have to put additional pressure in order to speak.

I cannot sing songs with a high pitch and get out of breath soon. I doubt if anyone would like to listen to my singing due to the hoarse voice.

But lately, I have been looking at pursuing singing as a hobby and wondering if there is a complete cure for my problem? I really want to have a normal voice.

In 1999, I was recommended to undergo Microlaryngoscopy, reduction of my left arytenoid, per umbilical liposuction and fat augmentation of the left vocal chord. The relevant items for this procedure are 41867 and 417870.

I am 33 years old now.

How should I go about it now? Any help would be highly appreciated.