Figure 3.

Study flow diagram. In the design phase, paper-based prototypes are designed for each subgroup. In the evaluation phase, 15 THA patients and four healthcare providers will use and evaluate the prototypes before and after surgery. A quasi-experiment with a non-random control cohort is performed to validate (through triangulation) the impact of using the prototype on care provider behaviour. The control cohort runs parallel to the design phase (see ‘Evaluation phase’ for the rationale for this).