Fig. 5

Case 18. A case of stage IIA chondrosarcoma in proximal humerus. a–c Anteroposterior and lateral X-ray, CT scan, and MRI images. d The allograft was fixed with a long segmental plate to repair the bone defect after tumor resection, and the rotator cuff and joint capsule were repaired. e–g The postoperative anteroposteric X-ray at 7 days, 6 months, and 12 months showed bone resorption of the host–donor junctions at 6 months after operation, and SPECT scan at 12 months showed active metabolism at the host–donor junctions, indicating that the process of bone healing was in progress. h The postoperative X-ray at 18 months showed that the host–donor junction was completely healed, and the internal fixation was firmly fixed