Methadone getting into my bones?

I remember for a long time my brother in law used to tell me to watch out for Methadone. he used to say it would get into my bones. I have done some reading on the subject and this is what I found out.

From the pages of Medical Assisted Treatment of America;
http://medicalassistedtreatment.org/35901/index.html

There is no evidence I know from the research literature that methadone affects the bones directly. I believe that this is an old 'howler' which seems to follow the rule that 'if you say something often enough then people will believe you'! Heroin use may theoretically lead to bone problems - mostly through injuries sustained in the quest for the illicit drug. Methadone treatment will reduce risk-taking behaviors and improve nutrition generally. Thus it probably aids with appropriate bone mineralization, growth and strength at the appropriate ages.