Rodríguez-Sanz, DavidLosa-Iglesias, Marta ElenaBecerro-de-Bengoa-Vallejo, RicardoSánchez-Milá, ZacaríasAbdelhalim Dorgham, Hend AdelEbrahim Elerian, AhmedYu, TianCalvo-Lobo, CésarVelázquez-Saornil, JorgeMartínez-Jímenez, Eva2024-10-282024-10-282023Rodríguez-Sanz D, Losa-Iglesias ME, de Bengoa-Vallejo RB, Sánchez-Milá Z, Dorgham HAA, Elerian AE, Yu T, Calvo-Lobo C, Velázquez-Saornil J, Martínez Jimene EM. A New Test for Achilles Tendinopathy Based on Kager's Fat Pad Clinical Assessment Predictive Values. J Clin Med. 2023 Aug 9;12(16):5183. doi: 10.3390/jcm12165183. PMID: 37629225; PMCID: PMC10455944.https://hdl.handle.net/10115/40772Background This study aimed to check the diagnostic accuracy of a new test to identify Achilles tendinopathy. Study design: Observational study. Methods: Seventy patients recruited from a private medical centre met the diagnostic criteria for unilateral Achilles tendinopathy (age, 45.1 ± 12.7 years; weight, 75.00 ± 10 kg; height, 1.75 ± 0.1 m) and were tested based on both Achilles tendons. Seventy patients with a unilateral Achilles tendinopathy ultrasound diagnosis were tested using David's test. Results: Most (86%) subjects demonstrated Kager's fat pad asymmetry in relation to the Achilles tendon in the complete passive dorsiflexion in the prone position (David's sign). No healthy tendons had David's sign. Conclusions: The presence of asymmetry in Kager's fat pad in relation to the Achilles tendon during complete passive dorsiflexion is strongly indicative of ultrasound-diagnosed tendinopathy. David's test demonstrated a sensitivity of 85.71% (95% CI, 77.51% to 93.91%) and a specificity of 100% (95% CIengAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/article10.3390/jcm12165183info:eu-repo/semantics/openAccess