Case: Bone & joint disease radiograph #50136645
Bone & joint disease Beginner
Read this radiograph systematically before revealing the answer. What is the main abnormality?
Image: Personalo via Wikimedia Commons · CC BY-SA 3.0 · source · resized and converted to WebP
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Answer: Hallux valgus (bunion)
What to look for in hallux valgus (bunion)
- Lateral deviation of the great toe at the first metatarsophalangeal joint.
- Increased hallux valgus angle (normal is under about 15°) and increased intermetatarsal angle.
- Medial soft-tissue prominence over the first metatarsal head.
Description by the image author (may be in another language): Severe bunion deformity correction without breaking bones or joint fusions was not deemed possible before osteodesis and syndesmosis procedures.
Educational case. The diagnosis comes from the image's documented source; the "what to look for" list describes the condition in general and is not a report of this individual image.
