Abstract
This paper reviews the literature on human relational factors and their impact on complex care systems for a highly vulnerable population of children and young people in out‐of‐home care (OOHC). Factors contributing to the functioning of collaborative OOHC systems are reviewed from theoretical and contextual perspectives. The authors posit that secondary traumatic stress and vicarious trauma are central to understanding the impact of relational trauma and the experience of individuals, families, teams, and the wider ecology of collaborative care systems. Given the challenges of working collaboratively across interpersonal, family, and systems boundaries to support traumatised children in OOHC, further research is required.