The symptomatic os subfibulare. Avulsion fracture of the fibula associated with recurrent instability of the ankle.
case_series · Level IV
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- Record sourced from PubMed, PMID 1890128.
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Abstract
Four adults who had symptomatic instability of the ankle had an associated os subfibulare. Operative exploration revealed the ossicle to represent a non-union of an avulsion fracture of the anterior talofibular ligament. These findings suggest that an os subfibulare represents an avulsion fracture that may or may not be associated with laxity of the anterior talofibular ligament, rather than being a normal variant.
Medical subject headings
- Ankle Joint
- Fibula
- Fractures, Ununited
- Joint Instability
- Tarsal Bones
Anatomy
- ankle