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Abnormal bony projections extend from the navicular and cuboid. The pseudo-articulation is likely fibrous, with opposing corticated bone separated by a narrow space. Secondary degenerative changes of marginal osteophytosis, subchondral sclerosis and cyst formation.
Cubonavicular coalition is a rare form of tarsal coalition.
- De Keyzer B, Øvreeide P, Crevits I. Cubonavicular coalition. JBR-BTR. 2014;96 (6): 400. Pubmed citation