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Updated: Jul 24, 2026

A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing (Neo)adjuvant Therapies

A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing (Neo)adjuvant Therapies

Published on: July 28, 2020

Surgical margin in soft tissue sarcoma. The Scandinavian Sarcoma Group experience.

A Alho¹, T A Alvegård, O Berlin

¹Orthopedic Service, Ullevål Hospital, University of Oslo, Norway.

Acta Orthopaedica Scandinavica

|December 1, 1989

Summary

Achieving wide surgical margins is crucial for high-grade soft tissue sarcoma local tumor control. Marginal excision alone significantly increases recurrence risk, while doxorubicin did not impact local recurrence rates.

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Area of Science:

Oncology
Surgical Oncology
Clinical Trials

Background:

High-grade soft tissue sarcomas require effective treatment strategies to improve local tumor control and patient survival.
Surgical margins are a critical factor influencing the risk of local recurrence in sarcoma treatment.

Purpose of the Study:

To evaluate the impact of different surgical margins on local tumor control in adult patients with high-grade soft tissue sarcoma.
To assess the efficacy of postoperative doxorubicin and radiotherapy in conjunction with surgical management.

Main Methods:

A randomized clinical trial involving 240 adult patients with high-grade soft tissue sarcoma across 18 hospitals.
Patients were randomized to postoperative doxorubicin or control, with radiotherapy for marginal surgical margins.

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Last Updated: Jul 24, 2026

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Analysis focused on local tumor control rates based on surgical margin status in 185 extremity tumors (Grades III or IV).

Main Results:

Overall cumulative local tumor control was 91% after a median follow-up of 47 months.
Compartmental or wide amputation (100%) and compartmental local excision (96%) demonstrated the highest local control rates.
Marginal excision alone resulted in a significantly lower local control rate (63%) compared to other surgical approaches.
The risk of local recurrence was 13 times higher after marginal surgery than compartmental surgery (P=0.02) and 3 times higher for tumors >10 cm (P=0.05).
Postoperative doxorubicin did not significantly influence the risk of local recurrence.

Conclusions:

Wide surgical margins, including compartmental or wide amputation and compartmental local excision, are associated with superior local tumor control in high-grade soft tissue sarcomas.
Marginal excision alone is insufficient for local tumor control and significantly increases recurrence risk.
Adjuvant doxorubicin therapy did not improve local recurrence rates in this study.