ArticlePloS one2026
Standardizing wrist x-rays: The human-centered design and evaluation of a wrist x-ray positioning tool.
Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
INTRODUCTION/
backgroundSmall amounts of malrotation can significantly decrease the diagnostic utility of a wrist radiograph. Poorly positioned wrist radiographs can result in repeat scans, additional imaging, and missed injuries. Tolerance for mistakes must be low. Radiographers, especially those with limited training, experience, or resources, may struggle to meet an acceptable standard, underscoring the need for an assistive positioning device that makes proper positioning more accessible.
methodsA human-centered design (HCD) process was used during the design of the Tru-Vu, a low-cost novel positioning aid, to assist radiographers with properly positioning of the wrist for x-rays. Initially, observations and preliminary interviews were conducted to understand the challenges faced by various end-users. The identified themes were used to guide the iterative design of the tool and training modules. To evaluate feasibility, the tool and training modules underwent testing using a cadaveric specimen.
resultsFactors that affect x-ray positioning and shape device adoption were determined from the preliminary end-user interviews. Through post-intervention questionnaires, the Tru-Vu tool and training modules were found to be easy to use/understand and perceived as effective by radiographers. There was no significant difference observed in overall radiograph quality and visualization of the scapholunate (SL) interval during cadaveric feasibility testing. DISCUSSION: This study provides insight into the HCD process used to create a novel radiographic positioning aid. The Tru-Vu tool was positively perceived by end-users; however, it did not demonstrate a significant effect on radiograph quality in cadaveric feasibility testing. Further research with live patients is required to demonstrate the clinical effectiveness of the Tru-Vu.
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