ArticleSkeletal radiology2026
Unstable os subfibulare in the setting of tibiotalar instability.
Article in Skeletal radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
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Abstract
An os subfibulare is an ossicle that is located distal to the lateral malleolus near the distal fibular tip and typically at the fibular attachment of the anterior talofibular ligament (ATFL). Although there is debate concerning whether these ossicles are unfused accessory ossification centers versus non-united ATFL avulsion fractures, they are seen frequently in the setting of ankle instability. We present a case of an active patient with an unstable os subfibulare contributing to painless "catching" of the ankle due to talar subluxation and locking. This report details the clinical presentation, radiological findings, including MRI and dynamic ultrasound in the "locked" position, and surgical treatment for this unusual presentation of this unstable ossicle. The case underscores the potential importance of the os subfibulare in a patient with ankle instability and highlights the role of advanced imaging in guiding effective treatment.
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