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Updated: Jan 4, 2026

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Endoscopic Bilateral Nipple-sparing Mastectomy via a Single Axillary Incision with Immediate Pre-pectoral Implant-based Breast Reconstruction
Published on: May 17, 2024
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Breast conservation surgery by round block mammoplasty.
Rajaram Burrah1, Karen James1, Jonathan Lund1
1Wirral Breast Unit, Wirral University Teaching Hospital, Clatterbridge Hospital, Wirral, Merseyside, CH63 4JY, UK.
Summary
Round block mammoplasty (RBM) is a safe oncoplastic technique for breast conservation surgery. This study shows RBM offers good surgical and oncological outcomes with low complication rates.
Area of Science:
- Oncoplastic surgery
- Breast cancer surgery
- Surgical oncology
Background:
- Round block mammoplasty (RBM) is an oncoplastic procedure designed to aid breast conservation surgery for breast cancer.
- This technique aims to improve cosmetic outcomes while ensuring oncological safety.
Purpose of the Study:
- To evaluate the surgical and oncological outcomes of Round block mammoplasty (RBM).
- To assess the safety and efficacy of RBM in breast conservation surgery.
Main Methods:
- Retrospective study analyzing data from 270 patients who underwent RBM.
- Evaluation of surgical outcomes, including margin status and complications.
- Assessment of oncological outcomes, including recurrence and metastasis rates.
Main Results:
- The study included 270 patients with a median age of 61 years and median follow-up of 39 months.
- Positive margins were observed in 14.8% of patients, with a 6.6% postoperative complication rate.
- Low rates of local recurrence (4), axillary recurrence (1), and distant metastasis (8) were reported.
Conclusions:
- Round block mammoplasty (RBM) is a robust and adaptable technique offering good exposure for safe oncological excision.
- RBM demonstrates favorable surgical and oncological outcomes.
- The need for contralateral symmetrising surgery is infrequent following RBM.

