Summary
Two cases of pronation-eversion fractures, grade four, are described which were sustained during sports activities. However, in both cases the medial structures of the joint were intact. The trauma mechanism is obscure but may be explained by considering the ankle joint and the subtalar joints as a torsion transmitter as suggested by Inman (1976).
Zusammenfassung
Es werden zwei Fälle von Pronations-Eversionsfrakturen (Grade IV) des Sprunggelenks beschrieben, die sich die Patienten bei sportlicher Betätigung zuzogen. In beiden Fällen blieben die Medialstrukturen des Gelenks jedoch intakt. Der Unfallhergang ist unklar, könnte aber so erklärt werden, daß das Sprunggelenk und die Subtalargelenke als Torsionsüberträger in Betracht kommen [wie von Inman (1976) angedeutet].
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References
Inman VT (1976) The joints of the ankle. William and Wilkins Co, Baltimore, pp 35–38
Lauge Hansen N, Ankelbrud I (1942) Genetisk diagnose og reposition. (Fractures of the ankle. I. Genetic diagnosis and treatment.) Diss, Munksgaard, Copenhagen
Olerud S (1979) Supinations-utåtrotationsskadans uppkomstmekanism. (The trauma mechanism for supinationeversion injuries.) Nordisk Ortopedisk Forenings Kurs, Beitostølen, 25–30 March 1979, pp 8–9
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Olerud, C., Molander, H. Atypical pronation-eversion ankle joint fractures. Arch. Orth. Traum. Surg. 102, 201–202 (1984). https://doi.org/10.1007/BF00575234
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DOI: https://doi.org/10.1007/BF00575234