Avulsion fracture of the 5th metatarsal styloid

Case contributed by Dr Mohammad Osama Hussein Yonso

Presentation

The patient accidentally twisted his left foot while walking 5 hrs ago, on examination: tenderness and swelling dorsolateral part of the left ankle/ foot, no open wound is seen.

Patient Data

Age: 30 years
Gender: Male

All X-ray views of the left foot demonstrating a fracture through the base of the fifth metatarsal involving the tarsometatarsal joint. This is in keeping with a pseudo-Jones fracture.

Incidentally, Os peroneum is seen.

Zoomed view

X-ray

Avulsion fracture of the 5th metatarsal styloid process, with about 5mm separation of the distal fragment.

Case Discussion

According to the Stewart classification, this fracture is considered type III.

According to the Dameron-Lawrence-Botte classification, this fracture is considered zone1.

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