Year: 2026
Type: article
Study design: Case Report
Abstract: The os supranaviculare is a rare accessory ossicle of the midfoot, typically considered asymptomatic. We report a case of chronic dorsal midfoot and anterior ankle pain in which the os supranaviculare likely contributed to an anterior ankle impingement mechanism with associated tibiotalar synovitis and extensor hallucis longus tenosynovitis. Dynamic ultrasound was essential in demonstrating mechanical interaction during dorsiflexion and in guiding targeted treatment. This case suggests that the os supranaviculare may play a clinically relevant role within the spectrum of anterior ankle impingement and should be considered in the differential diagnosis of chronic dorsal midfoot pain. Level of Evidence IV; Case report.
Source: Journal of the Foot & Ankle
Language: English
Topic: Foot and Ankle Surgery
Subfield: Orthopedics and Sports Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7140169506
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