Staying motivated is a known problem in rehabilitation, for example in orthopaedics. Isolated behaviour change interventions often fall short. EDUS (empowering data use in situ) proposes an approach to orthopaedic patients' rehabilitation that is based on their own location and local living environment and supported by data use. The case example is wrist rehabilitation of patients with combined conditions where these affect self-efficacy, because motivation is key here. Insights from this case may be transferable to other, broader groups. The project approach is research-through-design, eliciting patient needs through data feedback prototypes. [...]