• Tihanyi Dávid, Németh Kinga, Csákvári Zsófia, Ribes Kitti, Szűcs Attila, and Varga Marcell.
• Manninger Jenő Baleseti Központ, Budapest, Hungary.
• Injury. 2024 Sep 1; 55 Suppl 3: 111729111729.

IntroductionSeveral studies have proven that ultrasound (US) can improve the efficiency of early diagnostics of anterior cruciate ligament (ACL) injuries. ACL US is mainly performed by sonologists or radiologists. We have very little data on how effective these tests are if they are performed by an orthopaedic surgeon. We also have no information on the applicability of ACL US in children and adolescents. In this retrospective study, we analysed the results of point of care ultrasound (POCUS), which were performed by orthopaedic surgeons on children with suspected ACL injury.Materials And MethodsWe reviewed the data of children and adolescents who were examined with ultrasound between 2018 and 2021 for suspected ACL injury. ACL POCUS was done immediately after the physical examination, according to a standard technique. The tests were performed by an orthopaedic resident and young and a senior orthopaedic surgeon. The inclusion criteria were as follows: the child's age is between 0-15 years, the growth zones are open, the child later underwent MRI and/or arthroscopy, which confirmed or excluded the fact of an ACL injury. We excluded patients with incomplete recordings and documentation.Results119 children met the above criteria. The children were between 8 and 15 years old (mean = 13.29). Positive findings were found in 47, negative findings in 72 children with ACL POCUS. During the subsequent treatment, 57 children underwent only MRI examination, 11 children only arthroscopy, and 51 children both MRI and arthroscopy. The specificity of the test was measured as 0.958 and the sensitivity as 0.917 for complete ACL rupture. Regarding all ACL injuries (complete + partial), we found the sensitivity to be 83.019 and the specificity to be 95.45. The interrater agreement between radiologist and clinicians was 94.957 %. (Cohen's k: 0.8945).ConclusionsPOCUS can indicate functional insufficiency caused by ACL injury in children and adolescents. The biggest advantage of the test is that it is quick and simple, non-invasive. Further prospective diagnostic tests and standardized examination protocols can confirm our favourable experiences.Copyright © 2024. Published by Elsevier Ltd.

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