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A 15-year-old male athlete presented to the ED with sudden-onset left knee pain noted while playing basketball. He felt a popping sensation during jumping, followed by severe pain and inability to extend his left knee. Physical examination showed an abnormal contour of the distal side of the left thigh and a sharp skin protrusion on his anterior left knee (figure 1).
What is the most likely diagnosis?
Patella tendon rupture
Quadriceps tendon rupture
Tibial tubercle avulsion fracture
Tibial tubercle is the …
Contributors J-KL acquired the clinical data, drafted the manuscript and maintained contact and consent with the patient. J-TS served as scientific advisor and did revision of the manuscript. C-JC was responsible for editing the article and gave final approval to the manuscript.
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.
Provenance and peer review Not commissioned; internally peer reviewed.