Images in emergency medicine
Adolescent With Pain in the Left Knee

https://doi.org/10.1016/j.annemergmed.2017.10.017Get rights and content

Section snippets

Diagnosis

Sleeve fracture of the upper pole of the patella. Patella sleeve fracture is a rare fracture that occurs only in skeletally immature patients and is mostly located at the distal pole.1 It is extremely uncommon in the literature. The mechanism of sleeve fracture includes a rapid contraction of the quadriceps against resistance with knee flexion, which results in avulsion of the patella periosteum.2 Diagnosis may be delayed or missed, especially when the patient is considered to have sustained an

References (4)

There are more references available in the full text version of this article.

Cited by (0)

For the diagnosis and teaching points, see page 469.

To view the entire collection of Images in Emergency Medicine, visit www.annemergmed.com.

View full text
© 2017 by the American College of Emergency Physicians.