Fig. 1. (A) Preoperative radiograph of 77 years old female shows stable femoral neck fracture (Garden type 1). (B) Radiograph taken 29 months after internal fixation with cannulated screws shows well united fracture site but decreased horizontal shortening more than 6.5 mm compared to opposite femur. The horizontal shortening was measured as the difference of length from medial border of femoral head to lateral border of greater trochanter between contralateral femur (b) and ipsilateral femur (a).