Hallux sesamoid fracture
Citation, DOI & article data
Hallux sesamoid fractures are the commonest foot sesamoid fractures, with the medial sesamoid fractured more frequently than the lateral one 1. These hallucal sesamoids are also vulnerable to weight-bearing stress injury 2.
A sharp fracture line is seen separating irregular opposing surfaces of the sesamoid fragments. It can be depicted on plain radiograph of the foot with the aid of different projections. Axial hallux sesamoid bone projection may be an additional option for suspected fracture.
CT is more sensitive and specific than plain radiographs. MRI is rarely needed to confirm the diagnosis, however can be used to differentiate this entity from sesamoiditis or other diseases of the hallux sesamoid bones 3.
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- 3. Karasick D, Karasick SM, Karasick. Disorders of the Hallux Sesamoid Complex: MR Features. (1998) Skeletal radiology. doi:10.1007/s002560050410 - Pubmed
- 4. Sanders TG, Rathur SK. Imaging of painful conditions of the hallucal sesamoid complex and plantar capsular structures of the first metatarsophalangeal joint. (2008) Radiologic clinics of North America. 46 (6): 1079-92, vii. doi:10.1016/j.rcl.2008.09.001 - Pubmed