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Association between patellar tendon-related pain and morphological abnormalities of the patellar tendon visualized using ultrasound imaging in middle school athletes

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  • Yuuka Yasuura
  • Takahiko Fukumoto
  • Hiroaki Yamano
  • Yuya Mawarikado
  • Daisuke Uritani

Abstract

Background/Objective: To investigate whether morphological abnormalities of the patellar tendon, assessed using ultrasound imaging, are associated with patellar tendon-related pain in adolescent soccer players. Methods: This cross-sectional observational study was conducted at a university and enrolled 140 middle school soccer players (280 knees). Pain assessment was conducted using the visual analog scale and tenderness. Physical function assessments were also conducted. Ultrasound imaging was used to evaluate the morphology of the patellar tendon. Results: Data on a total of 211 knees were analyzed. Compared with non-painful knees, knees with patellar tendon-related pain exhibited significantly lower knee extension strength and a higher prevalence of hypoechoic and Doppler findings. The logistic regression analysis demonstrated a significant association between hypoechoic findings and patellar tendon-related pain (adjusted odds ratio = 10.65, 95% confidence interval: 3.65–31.88, p

Suggested Citation

  • Yuuka Yasuura & Takahiko Fukumoto & Hiroaki Yamano & Yuya Mawarikado & Daisuke Uritani, 2026. "Association between patellar tendon-related pain and morphological abnormalities of the patellar tendon visualized using ultrasound imaging in middle school athletes," PLOS ONE, Public Library of Science, vol. 21(9), pages 1-10, September.
    • Handle: RePEc:plo:pone00:0357407
    DOI: 10.1371/journal.pone.0357407
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