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  • Title: Tendon shift in hallux valgus: observations at MR imaging.
    Author: Eustace S, Williamson D, Wilson M, O'Byrne J, Bussolari L, Thomas M, Stephens M, Stack J, Weissman B.
    Journal: Skeletal Radiol; 1996 Aug; 25(6):519-24. PubMed ID: 8865484.
    Abstract:
    OBJECTIVE: This study was undertaken to demonstrate a shift in tendon alignment at the first metatarsophalangeal joint in patients with hallux valgus by means of magnetic resonance imaging. DESIGN: Ten normal feet and 20 feet with the hallux valgus deformity conforming to conventional clinical and radiographic criteria were prospectively studied using magnetic resonance imaging. Correlation was made between tendon position at the first metatarsophalangeal joint and the severity of the hallux valgus deformity. RESULTS: There is a significant shift in tendon position at the first metatarsophalangeal joint of patients with hallux valgus. The insertion of the abductor hallucis tendon is markedly plantarward and the flexor and extensor tendons bowstring at the first metatarsophalangeal joint compared with patients without the deformity. The severity of the tendon shift correlates with the hallux valgus angle and clinical severity of the hallux valgus deformity in each case. CONCLUSION: Patients with hallux valgus have a significant tendon shift at the first metatarsophalangeal joint which appears to contribute to development of the deformity.
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