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Participants rated the clinical importance of 14 clinical assessments, 26 radiological assessments, eight diagnostic classifications, and 26 outcome measures identified by a scoping review. Consensus was defined as \u2265\u200975% agreement. In the final round, items in each category were prioritised for overall condition and by specific age groups (&lt;\u20096 years, 6\u20138 years, &gt;\u20098 years).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Thirty-eight health professionals, from nine countries participated in round 1. Thirty-four completed all three rounds, a retention rate of 89.5%. Consensus and prioritisation for clinical use were achieved for 10 clinical assessments, three radiological assessments, three diagnostic classifications, and three outcome measures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Paediatric specialists have reached consensus and prioritised methods to evaluate and diagnose Legg-Calve-Perthes disease in clinical practice. These results represent an important step towards improving continuity of care and the foundation for future development of clinical practice guidelines.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00402-026-06392-3","type":"journal-article","created":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T12:10:43Z","timestamp":1782389443000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prioritisation of assessments, diagnostic classifications, and outcome measures in Perthes disease: a Delphi survey of international health professionals"],"prefix":"10.1007","volume":"146","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-3348-5251","authenticated-orcid":false,"given":"Stephanie","family":"Ball","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luke M.","family":"Davies","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelly","family":"Gray","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Verity","family":"Pacey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,6,25]]},"reference":[{"key":"6392_CR1","doi-asserted-by":"publisher","first-page":"S1","DOI":"10.1016\/j.jclinepi.2010.04.011","volume":"45","author":"DN Ader","year":"2007","unstructured":"Ader DN (2007) Developing the Patient-Reported Outcomes Measurement Information System (PROMIS). 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