"You were surprised that it took the victims nearly 40 years to make a complaint."
However, Judge Kelly last month found him guilty on three charges of indecent assault.
The men came forward after reading a newspaper article about a separate trial, in which Adams was acquitted.
In sentencing, the judge said Adams abused his position of trust as a health professional and the victims were vulnerable.
She took into account Adams' age and health problems and gave him credit for his lack of other convictions and for staying out of trouble in the 30 years since the indecent assaults.
Adams' offending began in the late 1970s, when he touched a boy, aged in his teens. The boy came to him for treatment on a troublesome back.
Adams then indecently assaulted a man who came to him for treatment, aged in his early 20s, in the early 1980s.
The final charge related to a teenage boy in the mid-1980s who went to Adams with a sore back and was indecently assaulted.
Each victim was indecently assaulted once and Judge Kelly said their statements to the court spoke of the effect the offending and having to re-live it in court had on them.
Defence lawyer Matt Dixon said Adams had heart problems and argued for him to serve home detention.
Crown prosecutor Matt Ferrier said the offending involved repeated assaults. "It was gratuitous touching essentially, presumably for the defendant's sexual gratification."