April 29, 2026 · Foot & ankle international · DOI: 10.1177/10711007261420195

Epidemiology and Clinical Characteristics of Os Intermetatarseum: A Systematic Review and Meta-analysis

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The authors aimed to determine the prevalence and clinical characteristics of os intermetatarseum (OI), an accessory ossicle between the first and second metatarsals, which can sometimes lead to painful syndromes. Their systematic review and meta-analysis of 21 studies revealed a pooled prevalence estimate of OI at approximately 1.16% in the general population, with notable regional variations and the importance of recognizing OI to avoid misdiagnosis with other conditions.

Maksymilian Osiowski, Aleksander Osiowski, Wojciech Siłka, Maciej Preinl, Dominik Taterra

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