Academic Journal
Redefining Hindfoot Alignment Based on Pathology rather than Morphology: A Prospective Observational Diagnostic Study on 250 Feet
| العنوان: | Redefining Hindfoot Alignment Based on Pathology rather than Morphology: A Prospective Observational Diagnostic Study on 250 Feet |
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| المؤلفون: | Lintz, Francois, Bernasconi, Alessio, Welck, Matthew J., Fernando, Céline, Netto, Cesar de Cesar |
| المصدر: | Foot & Ankle Orthopaedics ; volume 5, issue 4, page 2473011420S0033 ; ISSN 2473-0114 2473-0114 |
| بيانات النشر: | SAGE Publications |
| سنة النشر: | 2020 |
| الوصف: | Category: Ankle; Ankle Arthritis; Bunion; Hindfoot; Midfoot/Forefoot; Other Introduction/Purpose: The analysis of the hindfoot alignment (HA) is important in the management of various foot and ankle pathologies. Foot Ankle Offset (FAO), measured using Weight Bearing CT (WBCT) scans is a 3D biometric measurement of HA described in the literature, however only with relation to the clinical morphology of the hindfoot or previously known 2D biometrics such as the hindfoot angle. The aim of this study was to observe the FAO distribution on a continuous, large population of patients and to analyze its discriminating power between pathological and non-pathological cases. We hypothesized that threshold values could be determined for the normal range of FAO in terms of risk of presenting with different pathologies in varus or valgus configurations. Methods: Prospective, IRB approved (COS-RGDS-2016-06-008-P-LINTZ-F, Clinical Trials NCT 04134962), level II study. 125 patients (250 feet) with bilateral WBCT as standard follow-up were included at a single institution. Mean age was 54 years (18-84), 58.4 % were female. Each patient was clinically evaluated, scans analyzed by a fellowship-trained foot and ankle surgeon and all degenerative pathologies classified depending on their anatomical location (medial or lateral). HA was measured using FAO on 3D datasets and Tibio-Calcaneal Angle (TCA) on 2D Saltzman-El-Khoury views. All scans were analyzed a second time by a radiology MD. FAO and TCA Intraclass Correlation Coefficient (ICCs) and Spearman’s correlation coefficient were calculated. Mean FAO values were calculated for all, normal, varus and valgus cases, and each pathology group. Receiver operating Curves (ROC), threshold values of FAO and area under the curve (AUC) were established for predicting an increased risk of medial or lateral pathologies. Results: A threshold FAO value of -1.64% was found to best predict the risk of lateral pathology (51.4% sensitivity, 85.1% specificity, AUC=0.72) and 2.71% (95% sensitivity, ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1177/2473011420s00335 |
| DOI: | 10.1177/2473011420S00335 |
| الاتاحة: | http://dx.doi.org/10.1177/2473011420s00335 http://journals.sagepub.com/doi/pdf/10.1177/2473011420S00335 |
| Rights: | https://creativecommons.org/licenses/by-nc/4.0/ |
| رقم الانضمام: | edsbas.F8038504 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1177/2473011420s00335 |
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