Composite reverse shoulder arthroplasty for metastatic disease with 5-year follow-up.

We present a 67-old patient with pathologic fracture of the proximal humerus 5 monts after nephrectomy for the treatment of renal cell carcinoma. The patient was treated by resection of the proximal humerus and composite reverse shoulder artroplasty with humeral allograft. Satisfactory range of motion and good functional result (Constant score 74, 8 points less than the contralateral shoulder, DASH score 10) were achieved. In the case-report we present the surgical technique, possible complications and postoperative rehabilitation protocol, as well as literature review, comparing the different options for the treatment of large metaststic and primary bone tumors of the proximal humerus.