RT Journal Article T1 A New Test for Achilles Tendinopathy Based on Kager’s Fat Pad Clinical Assessment Predictive Values A1 Rodríguez Sanz, David A1 Losa Iglesias, Marta Elena A1 Becerro De Bengoa Vallejo, Ricardo A1 Sánchez Milá, Zacarías A1 Dorgham, Hend Adel Abdelhalim A1 Elerian, Ahmed Ebrahim A1 Yu, Tian A1 Calvo Lobo, César A1 Velázquez Saornil, Jorge A1 Martínez Jiménez, Eva María AB Background 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% CI, 100% to 100%), while noting the lack of blinding of the assessors and the uncertainty of the diagnostic measures (95% CI). Asymmetry of the fat pad could potentially serve as a characteristic marker for patients with Achilles tendinopathy. PB Multidisciplinary Digital Publishing Institute (MDPI) SN 2077-0383 YR 2023 FD 2023-08-09 LK https://hdl.handle.net/20.500.14352/124506 UL https://hdl.handle.net/20.500.14352/124506 LA eng NO Rodríguez-Sanz D, Losa-Iglesias ME, de Bengoa-Vallejo RB, Sánchez-Milá Z, Dorgham HAA, Elerian AE, et al. A New Test for Achilles Tendinopathy Based on Kager’s Fat Pad Clinical Assessment Predictive Values. Journal of Clinical Medicine. 2023;12(16). DS Docta Complutense RD 17 dic 2025