JointCalc: A Web-based Personalised Patient Decision Support Tool for Joint Replacement

Evgeny Zotov*, Andrew F Hills, Fabio L de Mello, Parham Aram, Adrian Sayers, Ashley W Blom, Eugene V McCloskey, J Mark Wilkinson, Visakan Kadirkamanathan

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Background and purpose
Health information systems (HIS) are expected to be effective and efficient in improving healthcare services, but empirical observation of HIS reveals that most perform poorly in terms of these metrics. Theoretical factors of HIS performance are widely studied, and solutions to mitigate poor performance have been proposed. In this paper we implement effective methods to eliminate some common drawbacks of HIS design and demonstrate the synergy between the methods. JointCalc, the first comprehensive patient-facing web-based decision support tool for joint replacement, is used as a case study for this purpose.

Methods and results
User-centred design and thorough end-user involvement are employed throughout the design and development of JointCalc. This is supported by modern software production paradigms, including continuous integration/continuous development, agile and service-oriented architecture. The adopted methods result in a user-approved application delivered well within the scope of project.

This work supports the claims of high potential efficiency of HIS. The methods identified are shown to be applicable in the production of an effective HIS whilst aiding development efficiency.
Original languageEnglish
Article number104217
Number of pages8
JournalInternational Journal of Medical Informatics
Early online date25 Jun 2020
Publication statusE-pub ahead of print - 25 Jun 2020


  • Health information system (HIS)
  • Decision support system
  • Medical informatics application
  • User-centered design
  • End-user participation
  • Agile software development


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