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OrthoVellum

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Foot & Ankle
intermediate
X-Type

Accessory Navicular

Pediatric Foot

A 14-year-old girl presents with chronic medial foot pain, worse with activity. She has a prominent bony bump over the medial arch with tenderness. She has bilateral flatfoot deformity. Radiographs show a large accessory bone at the medial navicular with apparent synchondrosis to the navicular body. Regarding accessory navicular:

Mark each as TRUE or FALSE

A

An accessory navicular is a secondary ossification center of the navicular bone present in 4-14% of ...

B

Type II is most commonly symptomatic because the synchondrosis is prone to stress and shear from PTT...

C

Type I is the most symptomatic type; the accessory bone is lateral to the navicular; flatfoot is nev...

D

Conservative treatment includes activity modification, cushioned footwear, medial arch support ortho...

E

Surgical treatment for refractory cases includes simple excision (Kidner procedure with PTT advancem...

Answer the questions to see explanations

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