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The aim of this study was to assess the treatment-related factors associated with local recurrence and overall survival of patients with osteosarcoma treated with limb-salvage surgery.<jats:italic> Patients and Methods<\/jats:italic>. Treatment-related factors were analyzed to evaluate their effects on local recurrence-free survival (LRFS) and overall survival (OS) in 182 patients from 2004 to 2013.<jats:italic> Results<\/jats:italic>. The mean length of follow-up was 73.4 \u00b1 34.7 months (median, 68 months; range, 12-173 months), and 63 patients died by the end of the follow-up. The 5-year and 10-year overall survival rates were 68.6 \u00b1 6.6% and 59.4 \u00b1 10.6%, respectively. Univariate analysis showed that treatment-related prognostic factors for overall survival were prolonged symptom intervals &gt;=60 days, biopsy\/tumor resection performed by different centers, previous medical history, incomplete preoperative chemotherapy (&lt;8 weeks), and prolonged postoperative interval &gt;21 days. In the multivariate analysis, biopsy\/tumor resection performed by different centers, incomplete implementation of planned new adjuvant chemotherapy, and delayed resumption of postoperative chemotherapy (&gt;21 days) were risk factors for poor prognosis; biopsy\/tumor resection performed by different centers and tumor necrosis &lt;90% were independent predictors of local recurrence.<jats:italic> Conclusion<\/jats:italic>. For localized osteosarcoma treated with limb-salvage surgery, it is necessary to optimize timely standard chemotherapy and to resume postoperative chemotherapy to improve survival rates. Biopsies should be performed at experienced institutions in cases of developing local recurrence.<\/jats:p>","DOI":"10.1155\/2019\/3215824","type":"journal-article","created":{"date-parts":[[2019,5,2]],"date-time":"2019-05-02T19:33:32Z","timestamp":1556825612000},"page":"1-13","source":"Crossref","is-referenced-by-count":10,"title":["Treatment-Related Prognostic Factors in Managing Osteosarcoma around the Knee with Limb Salvage Surgery: A Lesson from a Long-Term Follow-Up Study"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0709-1342","authenticated-orcid":true,"given":"Jianping","family":"Hu","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, Shanghai Tenth People\u2019s Hospital, Tongji University School of Medicine, 301 Yanchang Middle Road, Shanghai 200072, 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