Research Article

Talar Dome Investigation and Talocrural Joint Axis Analysis Based on Three-Dimensional (3D) Models: Implications for Prosthetic Design

Figure 1

Foot-loading device was used when CT scan was performed on the reference participant. (a) The main device included a CT gantry (A), a foot plate with stress sensor (B), a radiolucent pad (C), a frame (D), and a loading control system (E). (b) The reference participant was sitting on the foot-loading device which included a CT gantry (F), a foot plate with stress sensor (G), a radiolucent pad (H), a frame (I), and a loading control system (J). (c) A 5 cm Kirschner wire (2 mm Φ) was marked along with the axis of the second metatarsal by the landmark on the skin. (d) Making sure the extension line of the Kirschner wire passes through the midwidth of the talar dome and coincides with the mechanical axis during CT scanning.
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