Aim: To understand how family caregivers of older adults hospitalized for orthopaedic surgery are integrated by nurses in delirium prevention care. Design: Multiple case study. Methods: The sample consisted of eight cases. Each case comprised an older adult, a family caregiver, and a nurse. Data were collected from September 2017 ‐ April 2018 through various instruments, including semi‐structured interviews and family caregiver logs.