# Diagnosis of Bilateral Quadriceps Tendon Rupture Using Point-of-Care Ultrasound

**Authors:** Edward Guo, Akaysha Duran, Alexander Kuc, Alfred B. Cheng

PMC · DOI: 10.5811/cpcem.40087 · Clinical Practice and Cases in Emergency Medicine · 2026-01-05

## TL;DR

A 32-year-old man with bilateral knee pain was diagnosed with a rare quadriceps tendon rupture using point-of-care ultrasound, enabling timely surgery.

## Contribution

Demonstrates the effectiveness of point-of-care ultrasound in diagnosing rare bilateral quadriceps tendon ruptures in emergency settings.

## Key findings

- Point-of-care ultrasound confirmed bilateral quadriceps tendon rupture in a timely manner.
- The patient underwent successful surgical repair the day after diagnosis.
- Ultrasound is a viable alternative to MRI in emergency settings for this rare injury.

## Abstract

A healthy 32-year-old man presented to the emergency department with bilateral knee pain after landing from a jump. He was unable to extend his knees and had pain to palpation superior to the patella. Bilateral quadriceps tendon rupture was confirmed using point-of-care ultrasound, and the patient underwent operative repair the next day.

Bilateral quadriceps tendon rupture is exceedingly rare, which often leads to misdiagnosis. Magnetic resonance imaging is the gold standard diagnostic imaging study but has multiple disadvantages, especially in emergency settings. Point-of-care ultrasound is an excellent tool to screen for this injury and prevent morbidity from delay in surgical repair.

## Full-text entities

- **Diseases:** knee pain (MESH:D046788), Quadriceps Tendon Rupture (MESH:D012421), pain (MESH:D010146)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12890332/full.md

## References

5 references — full list in the complete paper: https://tomesphere.com/paper/PMC12890332/full.md

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Source: https://tomesphere.com/paper/PMC12890332