Intra- and Interobserver Reliability of the New Classification System of Progressive Collapsing Foot Deformity
| العنوان: | Intra- and Interobserver Reliability of the New Classification System of Progressive Collapsing Foot Deformity |
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| المؤلفون: | Kevin N. Dibbern, Matthieu Lalevee, Mark S. Myerson, John E. Femino, Hee Young Lee, Nacime Salomão Barbachan Mansur, Cesar de Cesar Netto, Scott J. Ellis |
| المصدر: | Foot & Ankle International. 43:582-589 |
| بيانات النشر: | SAGE Publications, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Foot Deformities, Male, medicine.medical_specialty, Radiography, Fleiss' kappa, Weight-Bearing, Cohen's kappa, Subtalar joint, Deformity, Humans, Medicine, Orthopedics and Sports Medicine, Posterior Tibial Tendon Dysfunction, Foot deformity, Retrospective Studies, business.industry, Reproducibility of Results, Retrospective cohort study, medicine.disease, Flatfoot, medicine.anatomical_structure, Female, Surgery, Radiology, medicine.symptom, business |
| الوصف: | Background: Historical concept of flatfoot as posterior tibial tendon dysfunction (PTTD) has been questioned. Recently, the consensus group published a new classification system and recommended renaming PTTD to Progressive Collapsing Foot Deformity (PCFD). The new PCFD classification could be effective in providing comprehensive information on the deformity. To date, there has been no study reporting intra- and interobserver reliability and the frequency of each class in PCFD classification. Methods: This was a single-center, retrospective study conducted from prospectively collected registry data. A consecutive cohort of PCFD patients evaluated from February 2015 to October 2020 was included, consisting of 92 feet in 84 patients. Classification of each patient was made using characteristic clinical and radiographic findings by 3 independent observers. Frequencies of each class and subclass were assessed. Intraobserver and inteobserver reliabilities were analyzed with Cohen kappa and Fleiss kappa, respectively. Results: Mean sample age was 54.4, 38% was male and 62% were female. 1ABC (25.4%) was the most common subclass, followed by 1AC (8.7%) and 1ABCD (6.9%). Only a small percentage of patients had isolated deformity. Class A was the most frequent component (89.5%), followed by C in 86.2% of the cases. Moderate interobserver reliability (Fleiss kappa = 0.561, P < .001, 95% CI 0.528-0.594) was found for overall classification. Very good intraobserver reliability was found (Cohen kappa = 0.851, P < .001, 95% CI 0.777-0.926). Conclusion: Almost half (49.3%) of patients had a presentation dominantly involving the hindfoot (A) with various combinations of midfoot and/or forefoot deformity (B), (C) with or without subtalar joint involvement (D). The new system may cover all possible combinations of the PCFD, providing a comprehensive description and guiding treatment in a systematic and individualized manner, but this initial study suggests an opportunity to improve overall interobserver reliability. Level of Evidence: Level III, retrospective diagnostic study. |
| تدمد: | 1944-7876 1071-1007 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6123eb150ece795d6c7bf0b1b084cc1Test https://doi.org/10.1177/10711007211058154Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....e6123eb150ece795d6c7bf0b1b084cc1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19447876 10711007 |
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