Fig. 2. A 66-year-old female who underwent primary total hip arthroplasty using a Corail^® stem. (A, B) Immediate postoperative radiograph. A type TL periprosthetic femoral fracture was detected during the operation and fixed by cerclage wiring. (C) One-year postoperative radiograph showed no abnormal findings in the right hip. (D-F) Immediate postoperative computed tomography (CT) images. (G) A periprosthetic occult femoral fracture that extended to the distal one-third of the femoral stem was observed concurrently on axial and three-dimensional CT reconstruction images at different levels.