Avulsion fracture of the lesser trochanter

Case contributed by Ammar Haouimi


Sudden severe right groin pain following jumping training. Ultrasound to rule out a muscular injury.

Patient Data

Age: 13 years
Gender: Male

A bony fragment with a surrounding hematoma is noted at the inner margin of the right femoral neck suggestive of an avulsion fracture.

The frontal radiograph of the pelvis confirms the avulsion fracture with upward displacement of the right lesser trochanter apophysis. No other associated fracture.

Case Discussion

Ultrasound and radiographic feature of an avulsion fracture of the lesser trochanter apophysis.

Usually due to a sudden forceful muscular contraction causing an avulsion fracture of the apoptosis, site of the tendon attachment.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.