A Case of Proximal Humerus Fracture Metastasis due to Clear Cell Renal Carcinoma Treated With Modular Hemiarthroplasty

We present a clinical case of a patient with proximal humeral bone metastasis from renal carcinoma. The patient underwent bone metastatic lesion resection, followed by shoulder modular hemiarthroplasty using a revision stem and an extended articular surface humeral head. The patient survived 3 years, maintaining sufficient shoulder function for activities of daily living and remaining pain-free (Constant Shoulder score 54 points and DASH score 29.3 at 2 years follow-up). The use of hemiarthroplasty proved to be an effective treatment option for this patient, considering the functional requirements and life expectancy.