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Load-bearing pattern of the ankle joint

Contact Area and Pressure Distribution

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Summary

The contact area of eight human talocrural joints was measured. After preparation, the talocrural joint was set into the compression machine. Under loading the casting was made by silicon rubber and the pressure distribution was measured by pressure sensor sheet. The contact area was localized at anterior and lateral parts. Under 1,500 N loading, the contact area was 522 mm2 and the maximum pressure was 9.9 MPa. Slight diastasis caused a decrease of the contact area and an increase of pressure.

Zusammenfassung

An acht menschlichen oberen Sprunggelenken wurde der Gelenkkontakt analysiert. Nach der Vorbereitung wurde das obere Sprunggelenk in eine Kompressionsmaschine eingespannt. Unter beibehaltener Belastung wurde eine Gußform aus einer Gießmasse hergestellt and auch die Verteilung des Druckes mit einem drucksensitiven Papier vermessen.

Die Gelenkkontaktfläche auf der Talusrolle liegt im ventrolateralen Bereich. Unter 1500 N Kompression ist der Maximumdruck 9.9 MPa and der Flächeninhalt 522 mm2. Eine kleine Diastase des oberen Sprunggelenks bewirkt eine Verringerung der Kontaktfläche und eine Vermehrung des Druckes.

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Kimizuka, M., Kurosawa, H. & Fukubayashi, T. Load-bearing pattern of the ankle joint. Arch. Orth. Traum. Surg. 96, 45–49 (1980). https://doi.org/10.1007/BF01246141

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  • DOI: https://doi.org/10.1007/BF01246141

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