Three-dimensional scanner with a modified evaluation method for measuring hand edema subtitle: an idea for accurate evaluation and preliminary fundamental and clinical validation
DOI:
https://doi.org/10.1080/2000656X.2022.2032105Abstract
Abstract Acute hand edema often results in loss of fine hand motor activities, especially without appropriate care. There is still no reliable and easy to use method to measure hand edema. In this study, we tested a handheld three-dimensional (3D) scanner on plastic male and female hand models using a whole hand measuring method (WM) and a modified method (MM) which excluded fingers. We evaluated the intra-rater reliability and inter-rater reliability and compared the measured volumes to computed tomography (CT) findings. Statistical analysis showed that the 3D scan method was valid and reliable for both WM and MM methods. In WM, intra-rater and inter-rater reliability were 0.97 and 0.84, with 95% confidence interval (CI) of 0.87–1.00 and 0.61–0.94, respectively. In MM, intra-rater and inter-rater reliability were 0.96 and 0.83, with 95% CI of 0.84–1.00 and 0.61–0.94, respectively. In comparison to the CT, the differences between 3D scan and CT in the male model volumes were 30.35 ± 2.70 cm3 (mean ± standard deviation) for WM and 11.60 ± 2.07 cm3 for MM. In the female model, the differences were 18.92 ± 2.66 cm3 and 11.18 ± 2.35 cm3, respectively. In both models, MM was significantly more accurate than WM (p < 0.001). When used in a clinical case, the scanner recorded changes in actual volume through the course of treatment. This cost-effective handheld 3D camera can be a reliable tool for evaluating hand edema even in cases of acute injury.Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Shimpo Aoki, Hisato Nagano, Tomoharu Kiyosawa, Yoshifumi Tsuda, Ko Izumiyama
![Creative Commons License](http://i.creativecommons.org/l/by-nc/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Acta Chirurgica Scandinavica Society owns the copyright for all material published until Volume 57 (2023) unless otherwise specified. As from Volume 59 (2024) all published articles, unless otherwise specified, are published under CC-BY licences, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, with the condition of proper attribution to the original work.