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The role of ultrasonography in the diagnosis of anterior cruciate ligament injury: A systematic review and meta-analysis
Authors:Jianhong Wang  Huaiyu Wu  Fajin Dong  Binbin Li  Zhanghong Wei  Quanzhou Peng
Institution:1. Shenzhen Public Service Platform of Precision Medicine and Molecular Diagnosis on Tumor, the Second Clinical College of Jinan University &2. Shenzhen People’s Hospital, Shenzhen, People’s Republic of China;3. Department of Ultrasound, The Second Clinical Medical College of Jinan University &4. Department of Emergency, The Second Clinical Medical College of Jinan University &5. Department of Pathology, The Second Clinical Medical College of Jinan University &
Abstract:To evaluate the value of ultrasonography in the diagnosis of anterior cruciate ligament injury (ACL injury) by conducting a systematic review and meta-analysis. A literature search was carried out in the Cochrane Library, Embase, Pubmed databases and included studies prior to April 2017. Based on inclusion and exclusion criteria, studies evaluating ultrasound to diagnose ACL injury were selected. MRI, arthroscopy and clinical-follow were considered the reference standards. The diagnostic accuracy of ultrasound was assessed using a combination of sensitivity, specificity, likelihood ratio (LR), post-test probability, diagnostic odds ratio (DOR) and by summarizing the area under the receiver operating characteristic (SROC) curve. A total of 4 studies involving 246 patients were eventually included in the analysis. In these four studies, the combined sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, post-test probability and DOR were 90.0% (95% CI: 77–96), 97% (95% CI: 90–99), 31.08 (95% CI: 8.75–110.41), 0.11 (95% CI: 0.05–0.24), 89% (3%) and 288.81 (95% CI: 78.51–1062.48), respectively. The area under the SROC curve was 0.98 (95% CI: 0.97–0.99). Our meta-analysis showed that ultrasound can play an important role in the diagnosis of ACL injury. Because of its high sensitivity, high specificity and high diagnostic ability, ultrasound should be a part of the standard diagnostic work-up of an ACL injury.
Keywords:Ultrasound  ACL injury  diagnostic test accuracy  systematic review  meta-analysis
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