Sun Hwa Lee1, Seong Jong Yun2. 1. Department of Emergency Medicine, Ewha Womans University Mokdong Hospital, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 07985, Republic of Korea. 2. Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 892 Dongnam-ro, Gangdong-gu, Seoul, 05278, Republic of Korea. zoomknight@naver.com.
Abstract
PURPOSE: To evaluate the diagnostic accuracy of ankle ultrasound for detection of anterior talofibular ligament (ATFL) tear with a reference standard of operative finding. METHODS: A computerized search of PubMed and EMBASE databases was performed to identify relevant original articles on ankle ultrasound for ATFL tear. The pooled proportions of the diagnostic accuracy estimates were assessed using random-effects modeling. We also assessed pooled proportions of the diagnostic accuracy according to injury stage (acute or chronic) and severity of injury (complete or partial). Heterogeneity among studies was determined using the inconsistency index (I2). Meta-regression analyses were performed to evaluate the potential sources of heterogeneity. RESULTS: Ten studies were included. The pooled proportion of the diagnostic accuracy of ankle ultrasound for ATFL was 0.95 (95% confidence interval [CI] 0.88-0.98). In subgroup analysis, the pooled proportion of the diagnostic accuracy of ankle ultrasound for acute ATFL tear was 0.92 (95% CI 0.85-0.95). The pooled proportion of the diagnostic accuracy of ankle ultrasound for chronic ATFL tear was 0.96 (95% CI 0.84-0.99). The pooled proportions of the diagnostic accuracy for complete and partial ATFL tear were 0.82 (95% CI 0.72-0.89) and 0.88 (95% CI 0.70-0.96), respectively. In the meta-regression analyses, the inclusion of pediatric patients was only significantly different (p = 0.007). CONCLUSIONS: Ankle ultrasound may be a useful diagnostic modality in the detection of ATFL tear in adults and children, regardless of injury stage and severity. For correct diagnosis of ATFL tear, a high-frequency ultrasound probe and sufficient experience of the examiner are mandatory.
PURPOSE: To evaluate the diagnostic accuracy of ankle ultrasound for detection of anterior talofibular ligament (ATFL) tear with a reference standard of operative finding. METHODS: A computerized search of PubMed and EMBASE databases was performed to identify relevant original articles on ankle ultrasound for ATFL tear. The pooled proportions of the diagnostic accuracy estimates were assessed using random-effects modeling. We also assessed pooled proportions of the diagnostic accuracy according to injury stage (acute or chronic) and severity of injury (complete or partial). Heterogeneity among studies was determined using the inconsistency index (I2). Meta-regression analyses were performed to evaluate the potential sources of heterogeneity. RESULTS: Ten studies were included. The pooled proportion of the diagnostic accuracy of ankle ultrasound for ATFL was 0.95 (95% confidence interval [CI] 0.88-0.98). In subgroup analysis, the pooled proportion of the diagnostic accuracy of ankle ultrasound for acute ATFL tear was 0.92 (95% CI 0.85-0.95). The pooled proportion of the diagnostic accuracy of ankle ultrasound for chronic ATFL tear was 0.96 (95% CI 0.84-0.99). The pooled proportions of the diagnostic accuracy for complete and partial ATFL tear were 0.82 (95% CI 0.72-0.89) and 0.88 (95% CI 0.70-0.96), respectively. In the meta-regression analyses, the inclusion of pediatric patients was only significantly different (p = 0.007). CONCLUSIONS: Ankle ultrasound may be a useful diagnostic modality in the detection of ATFL tear in adults and children, regardless of injury stage and severity. For correct diagnosis of ATFL tear, a high-frequency ultrasound probe and sufficient experience of the examiner are mandatory.
Authors: Marc Elkaïm; André Thès; Ronny Lopes; Michael Andrieu; Guillaume Cordier; François Molinier; Jonathan Benoist; Fabrice Colin; Olivier Boniface; Stéphane Guillo; Thomas Bauer Journal: Orthop Traumatol Surg Res Date: 2018-09-27 Impact factor: 2.256
Authors: Lawrence A Melniker; Evan Leibner; Mark G McKenney; Peter Lopez; William M Briggs; Carol A Mancuso Journal: Ann Emerg Med Date: 2006-03-24 Impact factor: 5.721