Figure 2.

Female patient, 21 years old, left proximal humeral osteosarcoma. She received segmental resection of left proximal humerus. The resection length accounted for 69.1% of total humeral length and the residual humeral length was 8.5 cm. Proximal humeral prosthesis (PHP) was used for reconstruction. (A) Preoperative X-ray and magnetic resonance imaging. (B) The bone defect was reconstructed by PHP with a synthetic mesh used for soft-tissue reconstruction. (C) Postoperative X-ray. (D) X-ray on 23 months after surgery showed significant loosening (type 2) combined with periprosthetic fracture and osteolysis (type 3). (E) X-ray after reoperation.