Participation in the RIAP project is voluntary. The network includes not only regions but also single hospitals or institutions interested in contributing to the registry even if located in regions not participating in the project.
The following regions and institutions are currently collecting data.
- Lombardy (*)
- Autonomous Province of Bozen/Bolzano – South Tyrol (*)
- Autonomous Province of Trento
- Campania (*)
- Apulia (*)
(*) Established regional registry
- Lorenzo Spotorno Foundation (non-profit organization), “Santa Corona” Hospital (Pietra Ligure, SV)
- Orthopedic Unit, “Santa Maria della Misericordia” University Hospital (UD)