PROMs in paediatric knee ligament injury: use the Pedi-IKDC and avoid using adult PROMs

Purpose: The aim of this systematic review was to present an evidence-based overview of psychometric properties of patient-reported outcome measures (PROMs) for children with knee ligament injury. Methods: A systematic search of literature was performed in PubMed, EMBASE and Cochrane databases. The inclusion criteria were diagnostic studies evaluating psychometric properties (validity, reliability, responsiveness) and comprehensibility of PROMs as well as studies including children (age < 18 years) with knee ligament injury. The systematic review was performed following the PRISMA statement. Results: Ten studies were included. Eight studies evaluated psychometric properties of PROMs, and two studies analysed comprehensibility of PROMs. The Pedi-IKDC has been evaluated in four studies and has acceptable psychometric properties. The KOOS-Child is evaluated in one study and has acceptable psychometric properties. The use of adult PROMs in children causes problems in comprehensibility. Conclusion: The Pedi-IKDC is an adequate PROM for children with knee ligament injuries. It is valid, reliable and responsive. The KOOS-Child might be an alternative PROM for the Pedi-IKDC, but has only been evaluated in one study. The clinical relevance of the present systematic review is that adult versions of PROMs are not recommended in children and adolescents. Level of evidence: III.

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