Fig. 3From: Computer-assisted femoral head reduction osteotomies: an approach for anatomic reconstruction of severely deformed Legg-Calvé-Perthes hips. A pilot study of six patientsPreoperative computer simulation of the FHRO. The greater trochanter is shown in purple, the mobile fragment in blue, the necrotic part in red, and the stable fragment in orange. The yellow line represents the remaining femoral neck thickness and the shadow contour the template. a Preoperative pathological femur. b Postoperative femur. The red square visualizes the contact zone between the fragmentsBack to article page