Kohler’s Disease (Osteochondrosis of the Navicular Bone)
What is it: Kohler's disease is avascular necrosis of the navicular bone. The cause is unknown.
How does it present: This disorder presents most commonly in boys between ages four and nine, and presents with pain and swelling and may cause limping.
Common exam findings: Exam may reveal tenderness over the navicular bone.
Tests and treatment: Diagnosis is made by foot x-rays. Treatment is generally conservative and may involve a period of immobilization.