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Foot & Ankle
intermediate
X-Type

Sinus Tarsi Syndrome

Ankle and Hindfoot

A 35-year-old woman presents with persistent lateral hindfoot pain 6 months after an inversion ankle sprain. She has instability on uneven ground and a sense of giving way. Examination reveals tenderness over the sinus tarsi (just anterior and inferior to the lateral malleolus) with pain on forced inversion. MRI shows inflammatory changes in the sinus tarsi with attenuation of the interosseous talocalcaneal ligament. Regarding sinus tarsi syndrome:

Mark each as TRUE or FALSE

A

The sinus tarsi is a cone-shaped space between the talus and calcaneus, located just anterior to the...

B

Sinus tarsi syndrome typically follows an inversion ankle injury in 70% of cases; other causes inclu...

C

The sinus tarsi is located behind the medial malleolus; it contains no ligaments; injury is associat...

D

Clinical examination reveals point tenderness in the sinus tarsi, pain with forced hindfoot inversio...

E

Treatment begins conservatively with activity modification, NSAIDs, physical therapy (proprioceptive...

Answer the questions to see explanations

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