Trial reportZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery2019
[Non-cemented modular prosthetic reconstruction for bone defect after tumor resection in lower extremities].
Trial report in Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo report the preliminary clinical results and analyze the prognostic factors of prosthetic failures with non-cemented modular prosthetic reconstruction after tumor resection in lower extremities.
methodsA clinical data of 150 patients with lower extremity tumors treated with MEGASYSTEM-C non-cemented modular prosthetic reconstruction between October 2011 and September 2016 was retrospectively analyzed. There were 88 males and 62 females, aged from 12 to 81 years, with a median age of 24 years. According to World Health Organization (WHO) classification of bone tumors, 120 cases were primary malignant tumors, 27 cases were intermediate tumors, and 3 cases were metastatic tumors. Among them, 134 cases underwent primary operation and 16 cases underwent reoperation after recurrence. Eighty-seven patients with malignant tumors received chemotherapy before and after operation, and no patient received local radiotherapy during perioperative period. Proximal femur was reconstructed in 32 cases, distal femur in 83 cases, and proximal tibia in 35 cases. The postoperative follow-up time, the results of oncology (survival status and tumor recurrence), and prosthesis failure (prosthesis survival rate, reasons for failure, treatment plan after failure) were recorded. The reason of the prosthesis failure was classified into 5 types according to the classification defined by Henderson
resultsAll patients were followed up 5-84 months, the median follow-up time was 39 months. During the follow-up period, there were 116 cases of tumor-free survival, 10 cases of tumor-bearing survival, and 24 died of lung metastasis or multiple metastases. The 3-year and 5-year survival rates of 120 patients with primary malignant tumors were 83.1% and 76.6%. There was no significant difference in survival rate between different reconstruction sites (
conclusionThe short-term follow-up showed a lower incidence of complications and good function for MEGASYSTEM-C non-cement modular prosthesis system in treatment of bone defects after lower limb tumor resection. The main factors affecting the early survival of prosthesis were tumor progression and infection.
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