Robotic Lateral Pelvic Lymph Node Dissection for Advanced Rectal Cancer: Bridging Eastern Surgical Precision and...

Area of Science:

• Surgical Oncology
• Rectal Cancer Management
• Minimally Invasive Surgery

Background:

• Historically, East-West practices diverged on managing lateral pelvic lymph node (LPLN) metastasis in advanced lower rectal cancer.
• Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines mandate LPLND, while Western approaches favor neoadjuvant chemoradiotherapy (nCRT) and total mesorectal excision (TME).

Purpose of the Study:

• To evaluate the impact of lateral pelvic lymph node dissection (LPLND) on local recurrence rates in advanced lower rectal cancer.
• To highlight the role of robotic surgery in advancing LPLND techniques and patient outcomes.

Main Methods:

• Review of evidence from the JCOG0212 trial and subsequent multicenter studies on LPLND efficacy.
• Analysis of robotic surgical advancements in LPLND, focusing on anatomical planes and functional outcomes.

Main Results:

• LPLND significantly reduces lateral local recurrence, especially in patients with enlarged LPLNs.
• Robotic LPLND offers precise dissection, nerve preservation, reduced blood loss, and improved postoperative urinary and sexual function.

Conclusions:

• Selective LPLND is increasingly endorsed, reflecting a convergence of surgical philosophies.
• Robotic LPLND integrates Eastern surgical precision with Western evidence-based multimodal therapy for optimal oncologic and functional results.