Fig. 4

The amount of distraction was determined by comparing a fluoroscopic image of the affected ankle to that of the contralateral uninjured ankle (a) based on both the talocrural angle, a perfectly equidistant and parallel joint space, and the contour of the lateral part of the articular talus surface that continues as an unbroken curve to the distal fibular recess. The fluoroscopic image shows fibular shortening and increased width of the medial clear space (b) which was restored after using the current technique (c)