Imaging of Tarsal Navicular Disorders

Abstract

The tarsal navicular is a bone within the midfoot that plays a critical role in maintaining the arch of the foot. This bone is clinically relevant because it may be affected by a wide array of pathologies. Our approach includes a detailed description of the imaging characteristics and disorders affecting the tarsal navicular. Organization includes (a) normal imaging, (b) accessory ossicles, (c) coalition, (d) fractures, (e) Kohler's disease, (f) osteonecrosis, (g) osteochondral lesions, (h) arthropathies, and (i) tumors. The purpose of this article is to discuss normal variants and pathological processes that can affect the tarsal navicular, with emphasis on the often-overlooked imaging findings.

WITHDRAWN: Imaging Appearances of Musculoskeletal Developmental Variants in the Pediatric Population

“…Irregular ossification of the navicular can be seen as a normal developmental variant, however the same radiographic appearance may be seen in Kohler's disease (osteochondrosis). The presence of midfoot swelling and pain favors the diagnosis of Kohler's disease[16].…”

Radiological Imaging of Foot Injuries

“…Some would argue that the so-called os naviculare is an old avulsion injury. Those with a secondary ossifi cation centre or a normal variant at this location tend to be at greater risk of avulsion displacement, and, therefore, pain in the region of an apparently normal variation should be considered seriously and investigated further when the clinical symptoms suggest that this is the location of the pain (Mellado et al 2003 ;Tuthill et al 2014 ) (Fig. 38.4 ).…”

Evaluation of Overlooked Fractures - Dislocations and Trauma Series

“…• Tarsal naviküla kırık ve patolojileri: Ayak arkının sağlanmasında çok önemli bir yeri olan navikular kemiğin koalisyon kırığı, osteonekrozu, kondral lezyonları sıklıkla atlanmaktadır. [28] • Lizfrank kırık ve çıkığı: Tarsometatarsal eklem kırıklı çıkıkları standart radyografik değerlendirmelerde %20 oranında atlanmaktadır. Dinamik bir muayene yapılmadan sadece grafi ile yapılan kontrolde kolaylıkla atlanılan bir yaralanmadır.…”