ANSWER: Talocalcaneal tarsal coalition

Corroborating findings on MRI of tarsal coalition include bone marrow oedema at the site of coalition ( figure 4 ) and tenosynovitis of the peroneal or flexor tendons. 6 A nuclear medicine bone scan may be useful as a screening tool for coalition when radiographs are negative, but lacks the specific...

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Bibliographic Details
Published in:British journal of sports medicine 2011-01, Vol.45 (1), p.68-69
Main Authors: Sangha, Bippan, Grebenyuk, Julia, Fisher, Teri, Forster, Bruce B
Format: Article
Language:English
Subjects:
Ankle
Bone marrow
Child development
Foot diseases
Medical imaging
NMR
Nuclear magnetic resonance
Pain
Young adults
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Summary:Corroborating findings on MRI of tarsal coalition include bone marrow oedema at the site of coalition ( figure 4 ) and tenosynovitis of the peroneal or flexor tendons. 6 A nuclear medicine bone scan may be useful as a screening tool for coalition when radiographs are negative, but lacks the specificity and sensitivity of CT or MRI. 7 Symptom severity determines the appropriate treatment for tarsal coalition and can involve conservative, medical or surgical therapy. Excision usually involves tissue interposition at the surgical defect to prevent the formation of haematoma and subsequent bony regrowth. Because calcaneonavicular coalition tends to present in early adolescence before secondary degenerative joint changes occur, excision has a higher rate of success. 8 Joint arthrodesis is used in cases in which degenerative joint disease is present. 2 Two types of arthrodesis are utilised: subtalar or triple arthrodesis.
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsm.2009.069716a