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. 2022 Nov 18;10:1002696. doi: 10.3389/fped.2022.1002696

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© 2022 Ossendorff, Placzek, Bornemann and Walter.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Schematic of the systematic evaluation of hip sonograms of different original articles (A). The original diagram from (5) was rotated by 90° and mirrored around the transversal axis for better clarity (ultrasound from the left, upright image). (B) Scheme of anatomical identification (Checklist I) from a course manual for the ultrasound course according to Graf (6). The numbers describe: 1, ChB (chrondro-osseous border); 2, femoral head; 3, synovial fold; 4, joint capsule; 5, labrum; 6, cartilage; 7, bony roof; 8, bony rim (turning point).