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Surgical technical aspects of uniportal hybrid RATS and biportal pure RATS using a subcostal port
Hiroyuki Kaneda1, Takahiro Utsumi1, Tomohiro Murakawa1
1Department of Thoracic Surgery, Kansai Medical University Medical Center, Moriguchi, Osaka, Japan.
Journal of Visualized Surgery
|June 11, 2026
Summary
Uniportal robotic-assisted thoracic surgery (RATS) offers minimally invasive benefits but has limitations. Alternative hybrid and biportal RATS approaches are presented to overcome these challenges in specific patient cases.
Area of Science:
- Thoracic Surgery
- Minimally Invasive Surgery
- Robotic Surgery
Background:
- Uniportal robotic-assisted thoracic surgery (RATS) evolved from multiportal RATS and video-assisted thoracic surgery (VATS).
- Uniportal pure RATS enables robotically controlled minimally invasive procedures.
- Technical limitations, such as stapler handling difficulties, restrict uniportal RATS indications.
Purpose of the Study:
- To present alternative surgical methods for overcoming uniportal RATS limitations.
- To describe techniques for uniportal hybrid RATS and biportal pure RATS.
- To address challenges in specific patient populations and complex anatomical dissections.
Main Methods:
- Uniportal hybrid RATS: placement of trocars in a triangular configuration and head-to-tail forceps manipulation.
- Biportal pure RATS: insertion of an additional subcostal port.
- Focus on avoiding trocar-robotic arm collisions and ensuring adequate distance to hilar structures.
Main Results:
- The described methods offer viable alternatives for patients unsuitable for uniportal pure RATS.
- Techniques facilitate complex procedures like middle lobectomy and lower lobe segmentectomies.
- Alternative port placement improves access and reduces potential complications.
Conclusions:
- Uniportal hybrid RATS and biportal pure RATS are effective alternatives to uniportal pure RATS.
- These approaches expand the applicability of robotic-assisted thoracic surgery.
- Careful technique and port placement are crucial for successful outcomes in challenging cases.

