Fig. 1Representative radiographs of an 82-year-old female with atypical femoral fracture (AFF) treated with long-term bisphosphonate. (A) Preoperative radiographs demonstrate findings consistent with AFF, including transverse fracture lines with periosteal thickening of the lateral cortex, and non-comminuted complete fracture lines with medial spikes. (B) Internal fixation was performed using a standard intramedullary nail.
Fig. 2Patient had a subtrochanteric fracture on the contralateral side while weight bearing on the left leg. (A) Preoperative radiographs also demonstrate atypical femoral fracture. (B) Internal fixation was performed using a long proximal femoral nail anti-rotation 2.
Fig. 3
(A, B) Plain x-ray and computed tomography images showing no fracture line can be seen. (C) Coronal T1-weighted spin echo coronal image showing a focal area of low signal intensity on the tension side of the right femoral neck. (D) Coronal fat saturated T2-weighted image showing similar focal area of florid marrow edema on the tension side of the right femoral neck.
Fig. 4
(A, B) Postoperative radiographs presenting the internal fixation with multiple cannulated screws for the treatment of tensile type insufficiency fracture of the femoral neck. (C, D) At 6-month follow-up, there was no evidence of screw loosening or fixation loss.