case_images: PMC6664512_01
case_images: Radiograph of the initial left femoral neck fracture.
case_images: CRIOR2019-1275369.001.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.001.jpg
case_images: fig1
case_images: She had undergone bipolar arthroplasty for left femoral neck fracture (Figures 1 and 2) and had been treated for osteoporosis with alendronate for 27 months after the bipolar arthroplasty.
case_images: Radiograph just after bipolar hip arthroplasty.
case_images: CRIOR2019-1275369.002.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.002.jpg
case_images: fig2
case_images: She had undergone bipolar arthroplasty for left femoral neck fracture (Figures 1 and 2) and had been treated for osteoporosis with alendronate for 27 months after the bipolar arthroplasty.
case_images: Radiograph shows a periprosthetic femoral fracture. A transverse fracture line around the stem tip progresses across the femur.
case_images: CRIOR2019-1275369.003.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.003.jpg
case_images: fig3
case_images: A periprosthetic simple transverse fracture at the level of the distal end of the stem was found (Figure 3).
case_images: Radiograph just after osteosynthesis with a locking plate on the lateral side of the femur.
case_images: CRIOR2019-1275369.004.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.004.jpg
case_images: fig4
case_images: Internal fixation with a locking plate was performed at the hospital (Figure 4).
case_images: Radiograph 2 months before the periprosthetic fracture shows localized periosteal thickening of the lateral cortex at stem tip level.
case_images: CRIOR2019-1275369.005.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.005.jpg
case_images: fig5
case_images: The retrospective radiographic analysis revealed that a periosteal thickening of the lateral cortex at the stem tip level had existed at least two months before the fracture (Figure 5).
case_images: Radiograph 9 months after the osteosynthesis showing nonunion at the site of the fracture.
case_images: CRIOR2019-1275369.006.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.006.jpg
case_images: fig6
case_images: Radiographs showed a nonunion fracture with osteosclerotic changes in the left femoral shaft at the level of the stem tip (Figure 6).
case_images: Radiograph of the right (contralateral) femur. Femoral bowing was measured as the angulation between the proximal and distal quarters of the femoral diaphysis. It was 13 degrees in this case.
case_images: CRIOR2019-1275369.007.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.007.jpg
case_images: fig7
case_images: Radiographs of her contralateral femur showed lateral bowing but no features of AFF (Figure 7).
case_images: Radiograph just after a revision surgery with a longer stem with a cemented technique and a locking plate on the lateral side of the distal femur.
case_images: CRIOR2019-1275369.008.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.008.jpg
case_images: fig8
case_images: Osteosynthesis was performed with a locking plate for the distal femur (NCB Periprosthetic Femur Plate; Zimmer Biomet, Tokyo, Japan) and a cable system (Figure 8).
case_images: Radiograph 2 years after the revision surgery showing bone union achieved.
case_images: CRIOR2019-1275369.009.jpg
case_images: PMC6664512_01_CRIOR2019-1275369.009.jpg
case_images: fig9
case_images: Bony union was successfully achieved, and no issues were seen with the hemiarthroplasty (Figure 9).