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Manual robot assisted endoscopic suturing: time-action analysis in an experimental model.
J P Ruurda1, I A M J Broeders, B Pulles
1Department of Surgery, University Medical Centre Utrecht, 3508 GA, PO Box 85500, Utrecht, The Netherlands.
Surgical Endoscopy
|May 28, 2004
Summary
Robot assistance may enhance endoscopic surgery for small-bowel anastomosis by reducing time per stitch, despite not shortening overall procedure time and causing some suture tears. Action analysis revealed significant benefits, especially in vertical bowel positioning.
Area of Science:
- Minimally Invasive Surgery
- Surgical Robotics
- Gastrointestinal Surgery
Background:
- Robotic surgery systems aim to improve upon traditional endoscopic surgery limitations.
- Assessing robot assistance for complex endoscopic surgical tasks is crucial for advancing surgical techniques.
Purpose of the Study:
- To evaluate the efficacy of robot assistance in supporting experienced endoscopic surgeons during a complex small-bowel anastomosis procedure.
- To compare standard endoscopic techniques with robotic assistance (da Vinci system) in terms of procedural efficiency and error rates.
Main Methods:
- Five experienced endoscopic surgeons performed end-to-end anastomosis on porcine small intestines using both standard and robotic techniques.
- Procedures were conducted in horizontal, vertical, and diagonal bowel positions.
- Key metrics included anastomosis time, stitch count, knot count, time per stitch, suture ruptures, and stitch errors, supplemented by action analysis.
Main Results:
- Time per stitch was significantly reduced with robot assistance (81.4 sec vs 95.9 sec).
- Robot assistance led to more suture ruptures (p=0.003), while standard techniques resulted in more stitch errors (p=0.017).
- Action analysis indicated significant benefits of robotic assistance, particularly in vertical bowel positions.
Conclusions:
- Robot assistance shows potential value for experienced surgeons in experimental small-bowel anastomosis.
- Lack of force feedback may contribute to suture tears in robotic procedures.
- Further research is needed to optimize robotic systems for complex endoscopic tasks.