Department of Orthopedics and Physical Rehabilitation; Department of Medicine, Division of Preventive and Behavioral Medicine
Health Information Technology | Musculoskeletal Diseases | Orthopedics | Surgical Procedures, Operative
BACKGROUND: Data-driven surgical decisions will ensure proper use and timing of surgical care. We developed a Web-based patient-centered treatment decision and assessment tool to guide treatment decisions among patients with advanced knee osteoarthritis who are considering total knee replacement surgery.
OBJECTIVE: The aim of this study was to examine user experience and acceptance of the Web-based treatment decision support tool among older adults.
METHODS: User-centered formative and summative evaluations were conducted for the tool. A sample of 28 patients who were considering total knee replacement participated in the study. Participants' responses to the user interface design, the clarity of information, as well as usefulness, satisfaction, and acceptance of the tool were collected through qualitative (ie, individual patient interviews) and quantitative (ie, standardized Computer System Usability Questionnaire) methods.
RESULTS: Participants were older adults with a mean age of 63 (SD 11) years. Three-quarters of them had no technical questions using the tool. User interface design recommendations included larger fonts, bigger buttons, less colors, simpler navigation without extra "next page" click, less mouse movement, and clearer illustrations with simple graphs. Color-coded bar charts and outcome-specific graphs with positive action were easiest for them to understand the outcomes data. Questionnaire data revealed high satisfaction with the tool usefulness and interface quality, and also showed ease of use of the tool, regardless of age or educational status.
CONCLUSIONS: We evaluated the usability of a patient-centered decision support tool designed for advanced knee arthritis patients to facilitate their knee osteoarthritis treatment decision making. The lessons learned can inform other decision support tools to improve interface and content design for older patients' use.
knee osteoarthritis, outcome prediction, patient decision support, total knee replacement, usability evaluation
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© Hua Zheng, Milagros C Rosal, Wenjun Li, Amy Borg, Wenyun Yang, David C Ayers, Patricia D Franklin. Originally published in JMIR Human Factors (http://humanfactors.jmir.org), 30.04.2018. This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Human Factors, is properly cited. The complete bibliographic information, a link to the original publication on http://humanfactors.jmir.org, as well as this copyright and license information must be included.
DOI of Published Version
JMIR Hum Factors. 2018 Apr 30;5(2):e17. doi: 10.2196/humanfactors.8568. Link to article on publisher's site
JMIR human factors
Zheng, Hua; Rosal, Milagros C.; Li, Wenjun; Borg, Amy; Yang, Wenyun; Ayers, David C.; and Franklin, Patricia D., "A Web-Based Treatment Decision Support Tool for Patients With Advanced Knee Arthritis: Evaluation of User Interface and Content Design" (2018). Open Access Articles. 3429.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.