case_images: PMC10591312_01
case_images: The imaging data of the patient on admission. (A) The CT results of the patient. (B) The MRI results of the patient. (C) The X-ray results of the patient.
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case_images: F1
case_images: CT results, at admission, revealed irregular and dense local cortical bone of the left femoral neck and proximal femur (Figure 1A). MRI results revealed semi-patchy abnormal signals in the medullary cavity of the left femoral neck and proximal femur, with evidence of a few patchy abnormal signals in the soft tissue of the left lateral thigh (Figure 1B). X-ray results revealed presence of scattered irregular dense masses in the upper part of the left femur (Figure 1C).
case_images: Preoperative osteotomy design planning. (A) The determination of osteotomy by MRI. (B) The design of preliminary prosthesis by software.
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case_images: F2
case_images: The porous structure of the prosthesis was designed by MAGICS software (Figure 2B; Figure 3A).
case_images: The design of 3D printed prosthesis, the actual prosthesis and the resection of tumor during the operation. (A) The design of personal 3D-printed prosthesis. (B) The actual prosthesis. (C) The resection of tumor during surgery.
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case_images: F3
case_images: The porous structure of the prosthesis was designed by MAGICS software (Figure 2B; Figure 3A). Notably, we designed a locking screw and placed it under the proximal femoral neck in order to prevent rotational shearing force of the prosthesis (Figure 3B; Figure 3C).
case_images: The results of post-operation of the patient. (A) Postoperative radiographs at 12 months after the operation. (B) The reexamined of functionality of the affected limb at 12 months after surgery. (C) The last reexamined of functionality of the affected limb.
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case_images: F4
case_images: Reexamination, performed 12 months after the operation, revealed excellent functionality of the affected limb (Figures 4A, B). And we found no obvious abnormalities observed at 12 months post-operation (Figure 4C).