Observational studyInternational journal of clinical oncology2026
Multidisciplinary prospective study of standardized pelvic lymph-node dissection focusing on the dorsal obturator nerve region.
Observational study in International journal of clinical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
24 authors.
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Abstract
backgroundPelvic lymph-node dissection is performed across multiple surgical specialties. However, inconsistent terminology and unclear anatomical boundaries hinder standardization. This study established a multidisciplinary team with a shared anatomical understanding, with the aim to prospectively evaluate standardized pelvic lymph-node dissection, focusing on the dorsal region of the obturator nerve.
methodsA prospective observational study was conducted at a single institution from November 2022 to 2025. A team of urology, gastrointestinal surgery, gynecology, and pathology specialists received standardized anatomical training. A total of 106 patients undergoing pelvic lymph-node dissection for pelvic cancers were enrolled. Pelvic regions were predefined into seven areas. Data on surgical outcomes, lymph-node yield, complications, operative time, and quality of life were collected. Central pathology review and photographic scoring were performed.
resultsOver 90% of surgeons rated the anatomical classification as clear. Planned lymphadenectomy was completed in over 95% of cases. The obturator region was consistently dissected. Dissection of the dorsal obturator nerve region did not increase the number of retrieved or positive lymph nodes but extended operative time by 15 min per side. No lymphadenectomy-related complications were observed in 96% of patients. Quality of life declined at 1 week postoperatively and stabilized by 1 month.
conclusionsA multidisciplinary, standardized approach to pelvic lymph-node dissection is feasible and facilitates implementation across specialties. Dissection of the dorsal obturator nerve region increases operative time without demonstrating additional oncological advantage in this study. Standardized anatomical frameworks may facilitate safer and more consistent practice.
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