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Screenshot of a measurement on mediCAD 3D shoulder. Left: axial view; the liner is positioned strictly parallel to the axial plane; the centre of the liners’ concavity is determined by using a best-fit circle. Right: frontal view; first a tangential line is drawn on top of the concavity (blue line). Then, the jump height is determined by drawing an orthogonal line (red) from the middle to the bottom of the concavity.
