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Foot & Ankle
intermediate
X-Type

Sesamoid Disorders - Sesamoiditis, AVN, and Fractures

Forefoot Pathology

A 28-year-old female long-distance runner presents with 6 months of pain beneath the first metatarsal head. Pain is worse with running and push-off activities. Examination reveals tenderness over the tibial (medial) sesamoid with pain on passive hallux dorsiflexion. Plain radiographs show fragmentation of the tibial sesamoid with sclerotic margins. Regarding sesamoid pathology of the great toe:

Mark each as TRUE or FALSE

A

The hallux sesamoids are located within the flexor hallucis brevis tendon and articulate with the pl...

B

Bipartite sesamoid occurs in 10-30% of the population and is bilateral in 85% of cases; it is more c...

C

Sesamoid fractures are best visualized on AP weight-bearing radiographs; stress fractures typically ...

D

Sesamoiditis refers to chronic inflammation and overuse injury of the sesamoid complex; it presents ...

E

Avascular necrosis of the sesamoid presents with fragmentation and sclerosis on radiographs; MRI sho...

Answer the questions to see explanations

Click T (True) or F (False) for each option