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  • Title: Prognostic factors affecting survival of patients with pathologic humerus shaft fractures treated with intramedullary nailing without tumor removal.
    Author: Bayram S, Özmen E, Birişik F, Kıral D, Salduz A, Erşen A.
    Journal: J Orthop Sci; 2019 Nov; 24(6):1068-1073. PubMed ID: 31543425.
    Abstract:
    BACKGROUND: Intramedullary nailing is the procedure of choice for pathologic fractures in humeral shaft because it allows early pain relief and mobilization. The aim of this study was to analyze the prognostic factors affecting survival of patients with pathologic humeral shaft fractures treated with intramedullary nailing without tumor removal. METHODS: We performed a retrospective study by evaluating the records of patients treated in our clinic between 2003 and 2018 for pathologic humerus shaft fractures with a minimum follow-up of one year. Kaplan-Meier methods were applied to estimate overall survival. A multivariate Cox algorithm was applied to recognize factors independently associated with survival. RESULTS: 52 patients (56 humeral fractures) were operated. The average age at the time of surgery was 58.9 years. There were 28 women and 24 men. In our series, multiple myeloma accounted for 52% of the cases. At the time of this study, 34 (65.3%) patients had deceased. Survival rates at first month, 6 months and 1 year after surgery were 96.2%, 67.4% and 59.6%, respectively. The median survival after surgery was 7.5 (6 days-84 months) months for deceased patients and 18 (34.7%) surviving patients with a median survival of 68.6 months. Rapid growth tumor, presence of pathological fracture in other extremities and, Eastern Cooperative Oncology Group performance status (ECOG-PS) were independently associated with a worse overall survival. CONCLUSION: More than 50% of patients with pathological humerus shaft fractures were diagnosed with multiple myeloma. Rapid growth tumors such as lung cancer and renal cell cancer increased mortality by a factor of 1 while presence of operative metastases in other extremities increased mortality by a factor of 3.1 and ECOG-PS increased mortality by a factor 6.8. Rapid growth tumors, ECOG-PS and presence of pathological fracture in other extremities were important prognostic factors influencing overall survival.
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