English to Spanish Social Sciences Psychology family therapy

Explanation: Hi, here is the explanation and context.

I'm translating a case of a young boy with depression so the text describes his relationship with his family. For example he has a disengaged relationship with his stepfather.

"Treatment of J’s family using structural family therapy. Through careful observation of J’s family in the consulting room, a structural family therapist would uncover a dysfunctional structure of his family and work to transform it into a functional one. The boundaries of this family were a complex combination of enmeshment and disengagement. The mother and younger sister characterized an enmeshed relationship and, to a lesser extent, the same held true for the boundary between J and his mother. On the other hand, J and his stepfather characterized a disengaged relationship."

How would you say this kind of relationship in Spanish?

Thanks in advanced,
Stephany Vargas.