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Images in sports medicine
‘T-junction’ hamstring muscle injury in an elite-level football player
  1. Kevin Cronin1,
  2. Fearghal Kerin2,
  3. Stuart O’Flanagan3,
  4. Eamonn Delahunt4
  1. 1 School of Medicine, University College Dublin - National University, Dublin, Ireland
  2. 2 PHPPS, University College Dublin, Dublin, Ireland
  3. 3 Sports Medicine Department, Sports Surgery Clinic, Dublin, Ireland
  4. 4 School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland
  1. Correspondence to Dr Kevin Cronin; kevin.cronin{at}ucd.ie

https://doi.org/10.1136/bjsports-2024-108463

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    Introduction

    Hamstring muscle injuries are the most prevalent injury sustained by elite-level football players.1 2 They account for as many as 24% and 12% of all injuries in European elite-level men’s and women’s football, respectively.1 2 The distal musculotendinous T junction (T-junction) of the biceps femoris muscle is formed by the confluence of the epimyseal surfaces of the anterolateral long head and posterolateral short head of the biceps femoris muscle (figure 1A). Entwisle et al 3 reported that biceps femoris injuries involving the T-junction have a particularly high rate of reinjury, however, this observation has recently been challenged.4

    Figure 1

    (A) Transverse ultrasound image illustrating the apex of the T-junction involving myotendinous connective tissue (yellow circle) and the deep myoaponeurotic connective tissue (red circle). (B) Transverse ultrasound image illustrating a superficial focal defect of the apex of the T-junction involving myotendinosus connective tissue (arrow) and a deep focal defect of the distal T-junction involving myoaponeurotic …

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    Footnotes

    • X @Cronin90Kevin, @fearghalkerin, @EamonnDelahunt

    • Contributors KC, FK, SO'F and ED were involved in the planning, conducting and writing of the article.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Competing interests None declared.

    • Patient and public involvement statement Verbal consent was obtained from the athlete in question to use their images for this manuscript. Recruitment of the athlete was from a referral from the athlete's clinician.

    • Provenance and peer review Commissioned; internally peer reviewed.