Apophysis of the proximal 5th metatarsal
Last revised by Bahman Rasuli ◉ on 29 Dec 2022
Citation, DOI & article data
Citation:
Gaillard F, Rasuli B, Sharma R, et al. Apophysis of the proximal 5th metatarsal. Reference article, Radiopaedia.org (Accessed on 05 Feb 2023) https://doi.org/10.53347/rID-7649
rID:
7649
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Synonyms:
- Proximal 5th metatarsal apophyses
- Proximal fifth metatarsal apophysis
- Apophysis of proximal fifth metatarsal
- Proximal 5th metatarsal apophysis
- Apophysis of proximal 5th metatarsal
The apophysis of the proximal 5th metatarsal (plural apophyses) lies laterally and is oriented longitudinally parallel to the shaft.
Apophysis of the fifth metatarsal base appears on plain radiographs at age 12 years for boys and 10 years for girls. Fusion of the apophysis to the metatarsal base usually occurs within the following 2-4 years 3,4.
Differential diagnosis
It should not be confused with an os peroneum or an avulsion fracture. An avulsion fracture at this location is typically extra-articular and oriented transversally as compared to the longitudinal orientation of an unfused apophysis.
Related pathology
- Iselin disease (apophysitis)
References
- 1. Wenger DR, Pring ME, Rang M. Rang's Children's Fractures, 3e. Lippincott Williams & Wilkins. (2005) ISBN:0781752868. Read it at Google Books - Find it at Amazon
- 2. Gwinn J, Stanley P. Diagnostic Imaging in Pediatric Trauma. Springer Science & Business Media. (2012) ISBN:1447131002. Read it at Google Books - Find it at Amazon
- 3. Canale ST, Williams KD. Iselin's disease. J Pediatr Orthop. 1992;12 (1): 90-3. Pubmed citation
- 4. Lehman RC, Gregg JR, Torg E. Iselin's disease. Am J Sports Med. 1987;14 (6): 494-6. Pubmed citation
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