Fig. 7From: The range of the required anterolateral cortex osteotomy distance varied widely in biplanar open wedge high tibial osteotomyAnother plane of the ascending cut was defined through the hinge point. The starting position of this new ascending cut was the same as the original one, and this plane was made to include the hinge point (a). Then, the angle between the plane of this transverse cut and the original one was measured in the XZ plane (b)Back to article page