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Scientific Articles   |    
Impact of Margin Status and Local Recurrence on Soft-Tissue Sarcoma Outcomes
Benjamin K. Potter, MD1; Paul F. Hwang, MD1; Jonathan A. Forsberg, MD1; Chadwick B. Hampton, MD1; John C. Graybill, MD1; George E. Peoples, MD2; Alexander Stojadinovic, MD2
1 Departments of Orthopaedics (B.K.P., C.B.H., and J.A.F) and Surgery (P.F.H. and J.C.G.), Walter Reed National Military Medical Center, 8901 Rockville Pike, America Building (Building 19), 2nd Floor, Orthopaedics, Bethesda, MD 20889. E-mail address for B.K. Potter: Benjamin.K.Potter.mil@health.mil
2 Department of Surgery, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814
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Disclaimer: The views expressed in this presentation are those of the authors and do not reflect the official policy of the Department of the Army, the Department of the Navy, the Department of Defense, or the United States Government.

Investigation performed at the Walter Reed National Military Medical Center, Bethesda, Maryland, and the Uniformed Services University of the Health Sciences, Bethesda, Maryland



Disclosure: One or more of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of an aspect of this work. In addition, one or more of the authors, or his or her institution, has had a financial relationship, in the thirty-six months prior to submission of this work, with an entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. No author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2013 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2013 Oct 16;95(20):e151 1-8. doi: 10.2106/JBJS.L.01149
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Abstract

Background: 

The impact of local recurrence and surgical resection margin status on survival in extremity soft-tissue sarcomas remains to be clearly defined. Our aim was to conduct a retrospective analysis of prospectively collected data to determine the prognostic relavance of positive resection margins and local recurrence for extremity soft-tissue sarcomas for survival.

Methods: 

Three hundred and sixty-three patients who underwent resection of localized primary extremity soft-tissue sarcomas with curative intent were selected from the United States Department of Defense Automated Central Tumor Registry. Outcomes for local recurrence, distant recurrence, disease-specific survival, and overall survival were analyzed according to clinical, pathological, and treatment variables with use of the Kaplan-Meier method (log-rank test) and the multivariate Cox regression model.

Results: 

Positive margins (hazard ratio, 1.99 [95% confidence interval, 1.15 to 3.45]), local recurrence (hazard ratio, 2.93 [95% confidence interval, 1.38 to 6.23]), and distant recurrence (hazard ratio, 12.13 [95% confidence interval, 5.97 to 24.65]) were significantly associated with overall survival on multivariate Cox regression analysis. However, for disease-specific survival, local recurrence was not significant and tumor size of >10 cm (hazard ratio, 2.83 [95% confidence interval, 1.15 to 6.95]), positive margins (hazard ratio, 1.95 [95% confidence interval, 1.05 to 3.63]), and distant recurrence (hazard ratio, 9.46 [95% confidence interval, 4.37 to 20.47]) were independent adverse prognostic factors.

The disease-specific survival rate for patients with localized soft-tissue sarcomas was 89% (95% confidence interval, 85% to 92%) for five years and 75% (95% confidence interval, 70% to 81%) for ten years.

Conclusions: 

Positive surgical margins are consistently associated with adverse survival-related outcomes in localized soft-tissue sarcomas of the extremity. Local recurrence had a significant impact on overall survival, but not on disease-specific survival.

Level of Evidence: 

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

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    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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