Three-Dimensional Digital Surgical Planning and Rapid Prototyped Surgical Guides in Bernese Periacetabular Osteotomy

Figure 12

Measurement of the center edge angle (a and b) and the Tönnis angle (c and d), for both the planned (a and c) and actual radiographs (b and d). The obtained center edge angle is equal to as planned, and the Tönnis angle is 2° less than as planned.

(a)

(b)

(c)

(d)