Figure 1

Serial radiographs of a 69-year-old man who underwent revision with the cemented stem (Lubinus SP II).
(a) Radiograph before revision, showing a loosened stem. (b) Radiograph immediately after revision with the Lubinus SP II cemented femoral stem. Cortical perforation occurred during the stem implantation. (c) Radiograph 7 years after revision with the Lubinus SP II stem. Cortical perforation healed without any progression of fracture.