90 percent! That's purty good!!Don't give up on the singing voice. Unless the your sawbones direly insists that you'll fall off you perch if you try to sing again, a good voice teacher--one who's worked with voices that have had problems--might be a great help. Way back when, I had a bad bout with chronic laryngitis, and after a couple of months of complete silence (not even whispering, which is harder on the vocal cords than talking), between my ENT quack and a good voice teacher, I got it all back. Took awhile, but I wound up sounding better than before.
Onward and upward, Cap'n!!
Don Firth