Reliability and validity of a mobile application for femoral anteversion measurement in adult patients
Abstract Background Femoral torsion is primarily measured by computed tomography (CT), which has cost and radiation exposure concerns. Recently, femoral anteversion measurement by a simple radiograph-based mobile application was developed for patients with cerebral palsy. This study aimed to validat...
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| Format: | Article |
| Language: | English |
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BMC
2023-05-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-023-03853-y |
| _version_ | 1797822745175654400 |
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| author | Joon Woo Lee Minjoon Oh Mi Na Choi Seung Yeol Lee |
| author_facet | Joon Woo Lee Minjoon Oh Mi Na Choi Seung Yeol Lee |
| author_sort | Joon Woo Lee |
| collection | DOAJ |
| description | Abstract Background Femoral torsion is primarily measured by computed tomography (CT), which has cost and radiation exposure concerns. Recently, femoral anteversion measurement by a simple radiograph-based mobile application was developed for patients with cerebral palsy. This study aimed to validate the use of a mobile application that can reconstruct a three-dimensional model of the femur from conventional radiographs for adults. Methods Medical records of 76 patients undergoing conventional femur anteroposterior/lateral radiography and femur CT were reviewed. To measure femoral anteversion on the reconstructed 3-dimensional images from both the mobile application and CT, we drew a line which connects the posterior margins of each femoral condyle and another line which passes through the center of the femoral head and the midpoint of the femoral neck. After the reliability test, a single examiner measured femoral anteversion on the mobile application and CT. Pearson’s correlation analysis was used to assess the correlation between anteversion on the mobile application and CT. Results Femoral anteversion measured on both CT and the mobile application showed excellent reliability (intraclass correlation coefficients: 0.808–0.910). The correlation coefficient between femoral anteversion measured using CT and the mobile application was 0.933 (p < 0.001). The correlation of femoral anteversion between CT and the mobile application was relatively higher in the absence of metallic implants (correlation coefficient: 0.963, p < 0.001) than in the presence of metallic implants (correlation coefficient: 0.878, p < 0.001). Conclusions Using two simple radiographs, the mobile application showed excellent validity and reliability for femoral anteversion measurement in adults as compared to CT. With the high accessibility and cost-effectiveness of this mobile application, femoral torsion measurement might be easily performed with simple radiography in clinical settings in the near future. |
| first_indexed | 2024-03-13T10:13:43Z |
| format | Article |
| id | doaj.art-881f7a00ff8d48fb8decb4b21e7ebe21 |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-03-13T10:13:43Z |
| publishDate | 2023-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-881f7a00ff8d48fb8decb4b21e7ebe212023-05-21T11:21:46ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2023-05-011811610.1186/s13018-023-03853-yReliability and validity of a mobile application for femoral anteversion measurement in adult patientsJoon Woo Lee0Minjoon Oh1Mi Na Choi2Seung Yeol Lee3Department of Orthopaedic Surgery, Myongji Hospital, Hanyang University College of MedicineDepartment of Orthopaedic Surgery, Myongji Hospital, Hanyang University College of MedicineDepartment of Orthopaedic Surgery, Myongji Hospital, Hanyang University College of MedicineDepartment of Orthopaedic Surgery, Myongji Hospital, Hanyang University College of MedicineAbstract Background Femoral torsion is primarily measured by computed tomography (CT), which has cost and radiation exposure concerns. Recently, femoral anteversion measurement by a simple radiograph-based mobile application was developed for patients with cerebral palsy. This study aimed to validate the use of a mobile application that can reconstruct a three-dimensional model of the femur from conventional radiographs for adults. Methods Medical records of 76 patients undergoing conventional femur anteroposterior/lateral radiography and femur CT were reviewed. To measure femoral anteversion on the reconstructed 3-dimensional images from both the mobile application and CT, we drew a line which connects the posterior margins of each femoral condyle and another line which passes through the center of the femoral head and the midpoint of the femoral neck. After the reliability test, a single examiner measured femoral anteversion on the mobile application and CT. Pearson’s correlation analysis was used to assess the correlation between anteversion on the mobile application and CT. Results Femoral anteversion measured on both CT and the mobile application showed excellent reliability (intraclass correlation coefficients: 0.808–0.910). The correlation coefficient between femoral anteversion measured using CT and the mobile application was 0.933 (p < 0.001). The correlation of femoral anteversion between CT and the mobile application was relatively higher in the absence of metallic implants (correlation coefficient: 0.963, p < 0.001) than in the presence of metallic implants (correlation coefficient: 0.878, p < 0.001). Conclusions Using two simple radiographs, the mobile application showed excellent validity and reliability for femoral anteversion measurement in adults as compared to CT. With the high accessibility and cost-effectiveness of this mobile application, femoral torsion measurement might be easily performed with simple radiography in clinical settings in the near future.https://doi.org/10.1186/s13018-023-03853-yFemoral anteversionConventional tomographyMobile application3-Dimensional reconstructionSimple radiograph |
| spellingShingle | Joon Woo Lee Minjoon Oh Mi Na Choi Seung Yeol Lee Reliability and validity of a mobile application for femoral anteversion measurement in adult patients Journal of Orthopaedic Surgery and Research Femoral anteversion Conventional tomography Mobile application 3-Dimensional reconstruction Simple radiograph |
| title | Reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| title_full | Reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| title_fullStr | Reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| title_full_unstemmed | Reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| title_short | Reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| title_sort | reliability and validity of a mobile application for femoral anteversion measurement in adult patients |
| topic | Femoral anteversion Conventional tomography Mobile application 3-Dimensional reconstruction Simple radiograph |
| url | https://doi.org/10.1186/s13018-023-03853-y |
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