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The Provincial Arthroplasty Register (RPPA)

The muscular and skeletal pathologies are the most known and common causes of chronically ill with high-potential of disability. 50% of persons over 65 years are affected (source: ISS/RIAP). The scientific literature reports detailed that with a prosthetic implant after pathologies regarding knee and hip joints the articular functionalities are restored about nearly completely. Furthermore the implant eliminates the painful clinical features and improves the general quality of life of patients.

In the Autonomous Province of Bolzano more than 2.000 arthroplasty interventions (knee and hip) a year are effectuated. Therefore we have the highest hospitalization rate nationwide with all his benefits for the patients.

The number of arthroplasty interventions is nationwide and world-wide constantly growing and this has a high impact on the health budget, which raises the interest to improve sanitary registers. They are necessary to monitor the utilization of prosthesis and to evaluate their survival time.

In 2006 the Istituto Superiore di Sanità was designated from the Ministry of Health to implement a national Arthroplasty Register (knee and hip).

Starting from 2009 the Autonomous Province of Bolzano has participated at the activities of the scientific national committee and sated the fundamentals of the own provincial register.

The provincial Arthroplasty Register was officially instituted with provincial law n. 3 of the 13th of May 2011.

The provincial Register enables observation of the utilization and survival time of prostheses and allows tracing of the patient in case of failure or unfavourable outcome.

The Hip Replacement Register is an instrument for registration of all interventions in our Province and allows making:

  • epidemiologic studies concerning interventions and registered pathologies
  • analysis about the survival time of the different types of hip prosthesis
  • comparison between different hip implants to verify the failure rate
  • comparison between the results of the different departments using the same hip implants
  • surveillance of the evolution of implants and interventions.

The analysis of the survival time of the implant would allow identifying the implants, which present a lower efficacy of the expected or fail prematurely. The availability to a provincial or national register also allows tracing the patients in case of unfavourable events.

The provincial Arthroplasty Register is coordinated and located at the Epidemiologic Observatory. The Local Health Authority has nominated the Scientific Provincial Committee. Its task is the technical and scientific supervision of the Register. Members of this Committee are representatives of the health districts and the private clinic S. Maria.
Dr. Günther Ziernhöld is available for medical consultation, while the statistical support is provided by the Epidemiologic Observatory.

Useful Links

Italian Register:
Registro Italiano ArtroProtesi (RIAP) -

Regional Registries active in Italy:
Registro dell'implantologia Protesica Ortopedica dell' Emilia-Romagna (Ripo): 
Registro Regionale di Implantologia Protesica Ortopedica – Puglia: 
Registro ortopedico protesico lombardo – Rolp:

European Registries:
Danish Hip Arthroplasty Register - 
Danish Knee Arthroplasty Register -
Dutch Arthroplasty Register - 
National Joint Registry of England, Wales and Northern Ireland - 
The Norwegian Arthroplasty Register – 
Portuguese Arthroplasty Register  - 
The Slovak Arthroplasty Register – 
The Swedish Hip Arthroplasty Register - 
The Swedish Knee Arthroplasty Register - 
The Nordic Arthroplasty Register Association (NARA) -!page?id=1150 
Endoprothesenregister Deutschland (EPRD) - 
Prothesenregister Tirol -

Other Registries:
EAR (European Arthroplasty Register): 
American Joint Replacement Registry (AJRR) - 
The Kaiser Permanente (KP) National Implant Registries - 
The Michigan Arthroplasty Registry Collaborative Quality Initiative (MARCQI) - 
The Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) - 
California Joint Replacement Registry (CJRR) - 
Canadian Joint Replacement Registry (CJRR) - 
The Concordia Joint Replacement Group (CJRG) –

Other Links:
International Society of Arthroplasty Registries - 
The Orthopaedic Data Evaluation Panel - 
Function and Outcomes Research for Comparative Effectiveness in Total Joint Replacement - 
The NZ Joint Registry (New Zeeland) - 
The International Consortium for Health Outcomes Measurement (ICHOM) -