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Effect of negative pressure wound therapy after surgical removal of deep-seated high-malignant soft tissue sarcomas of the extremities and trunk wall-study protocol for a randomized controlled trial

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BACKGROUND: Sarcomas are a heterogeneous group of rare malignant tumors of mesenchymal origin in the musculoskeletal system. The main treatment is surgery often supplemented with pre-or postoperative radiotherapy. A retrospective study by Bedi et al. indicated that negative pressure wound therapy (NPWT) reduced the risk of postoperative wound complications in patients treated with preoperative radiation followed by surgical tumor removal of lower extremity soft tissue sarcomas (STS), and the use of NPWT was not associated with an increased risk of local recurrence. Previous studies have shown that NPWT can reduce postoperative complications. STS surgeries are a high-risk procedure concerning wound complications.

METHODS: Non-blinded single-center randomized controlled trial comparing NPWT versus conventional wound dressing and postoperative wound complications after surgical removal of deep-seated high-malignant STS of the extremities or trunk wall Sample-size calculation: 154 STS patients (80% risk of avoiding type II error, 5% risk of type I error, and an 80% wound complication risk) Block randomization of 8 into: Group A: Conventional wound dressing Group B: NPWT (PREVENA PLUS™ Incision Management System) Inclusion criteria: Surgery for a deep-seated STS of an extremity or the trunk wall Exclusion criteria: Age < 18 years, plastic surgery, low malignant/borderline STS, chemotherapy, preoperative radiotherapy, allergic/hypersensitive to acrylic adhesives or silver, unwilling/unable to provide informed consent, metastatic disease, and ischemic surgeries Primary study endpoints were set as major wound complications defined by O'Sullivan et al. as a secondary surgery under anesthesia for wound repairs and wound management without secondary surgery within 4 months postoperatively. Secondary study endpoints among others are Musculoskeletal Tumor Society Score (MSTS), Toronto Extremity Salvage Score (TESS), and European Quality of Life - 5 Dimensions (EQ-5D). Approval from the Scientific Ethical Committee and the Data Protection Agency has been obtained, and the study is registered at clinicaltrial.gov . This study did not apply for external funding.

DISCUSSION: Many new medical devices and technical solutions are currently being introduced, and even though some documentation regarding the use of NPWT, e.g., in joint replacement surgery exist, it is also important to seek documentation for this treatment principle in STS surgery.

TRIAL REGISTRATION: Registered at ClinicalTrials.gov NCT04960332 and approved on 11 July 2021.

Original languageEnglish
Article number507
JournalTrials
Volume23
Issue number1
Pages (from-to)507
ISSN1745-6215
DOIs
Publication statusPublished - 18 Jun 2022

Bibliographical note

© 2022. The Author(s).

    Research areas

  • Adolescent, Extremities, Humans, Negative-Pressure Wound Therapy/adverse effects, Postoperative Complications, Quality of Life, Randomized Controlled Trials as Topic, Retrospective Studies, Sarcoma/surgery, Soft Tissue Neoplasms/pathology, Surgical Wound Infection/etiology

ID: 79007336