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Neoadjuvant radiation improves margin-negative resection rates in extremity sarcoma but not survival. J Surg Oncol 2020 Jun;121(8):1249-1258

Date

04/02/2020

Pubmed ID

32232871

DOI

10.1002/jso.25905

Scopus ID

2-s2.0-85082526705   3 Citations

Abstract

BACKGROUND AND OBJECTIVES: Radiation improves limb salvage in extremity sarcomas. Timing of radiation therapy remains under investigation. We sought to evaluate the effects of neoadjuvant radiation (NAR) on surgery and survival of patients with extremity sarcomas.

MATERIALS AND METHODS: A multi-institutional database was used to identify patients with extremity sarcomas undergoing surgical resection from 2000-2016. Patients were categorized by treatment strategy: surgery alone, adjuvant radiation (AR), or NAR. Survival, recurrence, limb salvage, and surgical margin status was analyzed.

RESULTS: A total of 1483 patients were identified. Most patients receiving radiotherapy had high-grade tumors (82% NAR vs 81% AR vs 60% surgery; P < .001). The radiotherapy groups had more limb-sparing operations (98% AR vs 94% NAR vs 87% surgery; P < .001). NAR resulted in negative margin resections (90% NAR vs 79% surgery vs 75% AR; P < .0001). There were fewer local recurrences in the radiation groups (14% NAR vs 17% AR vs 27% surgery; P = .001). There was no difference in overall or recurrence-free survival between the three groups (OS, P = .132; RFS, P = .227).

CONCLUSION: In this large study, radiotherapy improved limb salvage rates and decreased local recurrences. Receipt of NAR achieves more margin-negative resections however this did not improve local recurrence or survival rates over.

Author List

Shelby RD, Suarez-Kelly LP, Yu PY, Hughes TM, Ethun CG, Tran TB, Poultsides G, King DM, Bedi M, Mogal H, Clarke C, Tseng J, Roggin KK, Chouliaras K, Votanopoulos K, Krasnick BA, Fields RC, Pollock RE, Howard JH, Cardona K, Grignol V

Authors

Manpreet Bedi MD Associate Professor in the Radiation Oncology department at Medical College of Wisconsin
Callisia N. Clarke MD Assistant Professor in the Surgery department at Medical College of Wisconsin
David M. King MD Chair, Professor in the Orthopaedic Surgery department at Medical College of Wisconsin




MESH terms used to index this publication - Major topics in bold

Adolescent
Adult
Aged
Aged, 80 and over
Bone Neoplasms
Databases, Factual
Extremities
Female
Humans
Limb Salvage
Male
Margins of Excision
Middle Aged
Neoadjuvant Therapy
Neoplasm Recurrence, Local
Radiotherapy, Adjuvant
Retrospective Studies
Sarcoma
Soft Tissue Neoplasms
Survival Rate
United States
Young Adult