Erdem Aktaş1, Tacettin Ayanoğlu2, Yasin Hatipoğlu2, Ulunay Kanatlı2

1Department of Orthopaedics, Ankara Training and Research Hospital, Ankara, Turkey
2Department of Orthopaedics, Medical Faculty of Gazi University, Ankara, Turkey

Keywords: Avascular necrosis; Müller-Weiss disease; navicular bone.


Although, trauma, foot deformity (pes planovalgus), systemic diseases such as diabetes mellitus and lupus, drugs (steroids, antineoplastic) and excessive alcohol consumption have all been accused in the etiology of avascular necrosis of the tarsal bones, spontaneous avascular necrosis of the navicular bone, especially in adults, is a rare entity. In this article, we report a 50-year-old female patient with bilateral, spontaneous avascular necrosis of the navicular bone and related severe talonavicular arthrosis. Clinical and radiological findings were concordant with Müller- Weiss disease, which is a rare disease with complex idiopathic foot condition of the adult tarsal navicular bone characterized by progressive navicular fragmentation and talonavicular joint destruction. The patient was successfully treated with twostaged bilateral talonavicular arthrodesis.