II. Epidemiology
- Rare condition
- Age: Onset at age 2-8 years
- Gender: Boys affected 3-5 times more commonly than girls
III. Pathophysiology
- Unknown etiology
- Not associated with Trauma
- Avascular necrosis of Tarsal Navicular
IV. Symptoms
- Presents with midfoot pain and Pediatric Limp (favoring unaffected side)
V. Signs
- Local pain, tenderness, swelling over Tarsal Navicular
VI. Imaging: Foot XRay
- Flattening, sclerosis, fragmentation and irregularity of Tarsal Navicular
VII. Management
- Protect from excessive Trauma
- Rest
- Ice Therapy
- Short walking cast for 7-8 weeks
VIII. Prognosis
- Spontaneous recovery by rule
- Complete Navicular re-ossification in 2-3 years