Use of percutaneous microwave ablation for the treatment of bone tumors: A retrospective study of clinical outcomes in 47 patients

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Abstract

Objective: The present study aimed to evaluate the short-term clinical performance and safety of percutaneous microwave ablation (MWA) techniques for the treatment of bone tumors. Methods: This single-institution retrospective study investigated 47 cases of bone tumors treated by MWA from June 2015 to June 2018. The study included 26 patients (55.3%) with benign bone tumors and 21 patients (44.7%) with malignant bone tumors. The tumors were located in the spine or sacrum (15, 31.9%), the upper extremities (6, 12.8%), the lower extremities (17, 36.2%) and the pelvis (9, 19.1%). Outcomes regarding clinical efficacy, including pain relief, quality of life, and intervention-related complications, were evaluated before and after MWA using the visual analog scale (VAS) and the 36-item Short-Form Health Survey (SF-36) scoring system. Results: Of the 47 patients included in this study, all of them completed follow-up examinations, with a mean follow-up duration of 4.8 ± 1.6 months (range, 2-9 months). Significantly improved VAS and SF-36 scores were recorded after the initial treatment (P<0.001), suggesting that almost 100% of patients experienced pain relief and an improved quality of life following surgery. No major intervention-related complications (e.g., serious neurovascular injury or infection) occurred during or after the treatment. We recorded only three minor posttreatment complications (6.4%, 3/47), which were related to thermal injury that caused myofasciitis and affected wound healing. Conclusion: In our study, the short-term efficacy of MWA was considerably favorable, with a relatively low rate of complications. Our results also showed that MWA was effective for pain relief and improved patients' quality of life, making it a feasible treatment alternative for bone tumors.

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Wu, M. hao, Xiao, L. fei, Yan, F. fei, Chen, S. L., Zhang, C., Lei, J., & Deng, Z. ming. (2019). Use of percutaneous microwave ablation for the treatment of bone tumors: A retrospective study of clinical outcomes in 47 patients. Cancer Imaging, 19(1). https://doi.org/10.1186/s40644-019-0275-8

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