Study Comparing Negative Pressure Dressing vs Conventional in Patients With Resected STS After Radiotherapy

Prior treatment

• Patient requiring a surgical revision after R1 or R2 resection;
• Planned no wound-closure and skin graft after resection

Other

• Known hypersensibility to silver
• Patients with a diagnosis of Ewing's sarcoma, chondrosarcoma, osteosarcoma, or desmoid tumor. Nota bene: Only patients with bone tumors are affected; patients with soft tissue tumors can be included in the study.
• Patient in relapse setting;
• Planned blade drainage;
• Patient requiring authorship or curators or patient deprived of liberty.

• Age ≥ 18 years at the day of consenting to the study
• Patients with primary STS of the limb or trunk treated with preoperative external radiation therapy (decided in multidisciplinary board)
• Intent to cure resection required for STS planned between 3 to 8 weeks after the end of RT
• Planned primary wound closure, including local or distant jambeau
• Ability to understand and willingness for follow-up visits
• Covered by a medical insurance
• Signed and dated informed consent document indicating that the patient has been informed of all aspects of the trial prior to enrolment.