Modular cementless prosthetic reconstruction after resection of lower extremity malignant tumor

Introduction: The aim of the study is to report the preliminary clinical and functional outcomes of amodular cementless tumor resection prosthesis system (Megasystem-C®, Waldemar Link GmbH&Co. KG,Hamburg, Germany) in patients undergoing limb salvage surgery with wide resection in a lower extremity primary or metastatic malignant bone tumor.Material and methods: Fifty-two consecutive patients (33 male and 19 female; mean age 37.1 years(range, 16 to 79) with primary or metastatic lower extremity malignant bone tumor who underwentwide resection and reconstruction with cementless Megasystem-C®system were included in the study.Patients were analyzed for age at diagnosis, gender, type and localization of the tumor, time of follow-up,patient and prosthesis survival, complications, oncological and functional outcomes.Results: Mean follow-up time was 43.2 months (range, 8 to 66). Cumulative patient survival rate was92.3 percent and cumulative prosthetic survival rate was 65.4 percent. 18 complications were recordedand 9 of them required revision (17.3 percent). Mean overall Musculoskeletal Tumor Society score scorewas 72.7 percent (range, 52 to 86). Subgroup analyzes demonstrated no difference in complication rates,overall patient or prosthetic survivals. Functional scores according to age, diagnosis and location of thereconstruction also were not signiŞcantly different.Conclusion: The preliminary short-term follow-up results revealed that, the new generation modularcementless endoprosthetic system offers promising clinical and functional outcomes with reasonablecomplication rates.Level of evidence: Level IV, Therapeutic study

Kaynakça

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