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Accessory Navicular Bone Mimicking Navicular Fracture after Ankle Sprain

Author(s): Muharrem Çidem | Murat Uludağ | Kerem Gün | Ülkü Akarırmak

Journal: Türkiye Fiziksel Tip ve Rehabilitasyon Dergisi
ISSN 1302-0234

Volume: 57;
Issue: 3;
Start page: 172;
Date: 2011;
Original page

Keywords: Accessory navicular bone | ankle sprain | navicular fracture

An accessory navicular bone (ANB) is present in 10-30% of normal feet. A morphological classification of ANB on the basis of the radiographic appearance distinguishes three types. Most symptomatic ANBs are of type 2. Although the diagnosis and treatment of sprained ankle are generally straightforward, together with an ANB, it might be misdiagnosed as a fracture. We present a 20-year-old male with type 2 ANB who was misdiagnosed as navicular fracture following sprained ankle. Turk J Phys Med Rehab 2011;57:172-4.
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