... kann nicht auf andere Therapien übertragen werden
oder
kann nicht von anderen Therapeuten verwendet werden

... ? . . .


... 'carried across' ? . . .

is not therapeutically interchangeable

Thanks. Both good suggestions.

Daddy,
I think it's both, since osteopaths are supposed to be empathetic to the patient and 'feel' the ailment, undergoing special training to achieve this ability. But the emphasis seems to be on the former. Just the way I understand the sentence.

I have been offered

intertherapeutically not transposable

elsewhere, which I like.