The Italian cross-cultural adaptations of the paediatric International Knee Documentation Committee Score and the Hospit

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The Italian cross‑cultural adaptations of the paediatric International Knee Documentation Committee Score and the Hospital for Special Surgery Paediatric Functional Activity Brief Scale are reliable instruments in paediatric population Luca Macchiarola1   · Alberto Grassi1 · Stefano Di Paolo1 · Nicola Pizza1 · Giovanni Trisolino2 · Stefano Stallone2 · Stefano Stilli2 · Stefano Zaffagnini1 Received: 17 September 2019 / Accepted: 4 February 2020 © European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2020

Abstract Purpose  The aim of the present study was to translate, cross-culturally adapt, and assess the psychometric properties of the Pedi-IKDC and Pedi-FABS scores in the Italian paediatric population with various knee pathologies. Methods  In accordance with the Paediatric Anterior Cruciate Ligament Monitoring Initiative (PAMI) research protocol, the original English versions of the questionnaires were translated into Italian. All patients aged 8–16 and scheduled for knee surgery were considered eligible in the study. An open-source platform was implemented to collect responses to the surveys which included general patient information, the questionnaires Pedi-IKDC, and Pedi-FABS. Two surveys were sent under stable clinical conditions before surgery (Q1 and Q2); a third survey was sent 3–4 months after surgery (Q3). The following properties were calculated: reliability, internal consistency, criterion validity, responsiveness, and floor/ceiling effects. Results  Eighty-nine patients completed Q1, 81 patients completed Q2, and 49 patients completed Q3. Both questionnaires demonstrated acceptable properties. Pedi-IKDC: standard error of measurement (SEM) = 4.4, smallest detectable change (SDC) = 12.3, interclass correlation coefficient (ICC) = 0.96, Cronbach alpha (α) = 0.92, moderate-to-low correlation to PediFABS, effect size (ES) = 0.79, standardized response mean (SRM) = 0.86, floor = 0%, ceiling = 22%. Pedi-FABS: SEM = 2.1, SDC = 5.8, ICC = 0.94, Cronback alpha (α) = 0.93, moderate-to-low correlation to Pedi-IKDK, ES = 0.60, SRM = 0.51, floor = 19%, ceiling = 0%. Conclusions  The Italian version of Pedi-IKDC and Pedi-FABS is valuable tools for patient assessment, by demonstrating good psychometric properties. In clinical setting, these questionnaires can be used to properly evaluate outcomes in Italian pediatric patients with knee pathologies. Level of evidence II. Keywords  Pedi-IKDC · Pedi-FABS · Pediatric ACL · PAMI · Italian validation

Introduction Electronic supplementary material  The online version of this article (https​://doi.org/10.1007/s0016​7-020-05903​-y) contains supplementary material, which is available to authorized users. * Luca Macchiarola [email protected] 1



Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136 Bologna, Italy



Ortopedia Pediatrica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136 Bologna, Italy

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Patient-reported outcome measures (PROMs) have become widespread in sport medicine r