Clin Orthop Surg.  2013 Jun;5(2):152-154. 10.4055/cios.2013.5.2.152.

Symptomatic Os Infranaviculare

Affiliations
  • 1Department of Orthopedic Surgery, Ewha Womans University School of Medicine, Seoul, Korea. kimjk@ewha.ac.kr

Abstract

The author observed a new accessory bone of the foot in the distal portion of navicular, which articulated with the medial cuneiform and the intermediate cuneiform, and named it os infranaviculare. A degenerative change was observed between the accessory bone and the navicular; this caused midfoot pain to the patient during weight-bearing. Thus, the patient was treated by excision of the accessory bone. The symptom was relieved at one-year postoperative.

Keyword

Os infranaviculae; Accessory bone

MeSH Terms

Bone Diseases/complications/*pathology/radiography/surgery
Humans
Male
Middle Aged
Pain/etiology
Running
Tarsal Bones/*pathology/radiography/surgery

Figure

  • Fig. 1 Radiograph of the affected right foot revealing the 10 × 15 mm-sized accessory bone (arrow) between the navicular and medial cuneiform.

  • Fig. 2 Computed tomography showing that the accessory bone was surrounded by the intermediate cuneiform, the navicular and medial cuneiform, sclerotic change, and a bony spur between the navicular and the accessory bone (arrow). (A) Axial view and (B) sagittal view.

  • Fig. 3 Plantar view of excised accessory bone. The black arrow indicates the articular surface between the accessory bone and the medial cuneiform. The white arrow indicates the articular surface between the accessory bone and the intermediate cuneiform. Arrowhead indicates the contact surface between the accessory bone and the navicular.


Cited by  1 articles

Symptomatic Os Paracuneiforme: A Case Report
Seung Hun Woo, Won Chul Shin
J Korean Foot Ankle Soc. 2021;25(2):108-110.    doi: 10.14193/jkfas.2021.25.2.108.


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