Quantitative analysis of the functionality and efficiency of three surgical dissection techniques: a time-motion...

Area of Science:

• Surgical Technology
• Minimally Invasive Surgery
• Surgical Education

Background:

• Surgical techniques require objective evaluation due to increasing complexity.
• Laparoscopic ligation alternatives like monopolar coagulation and bipolar scissors need comparison.
• Quantitative time-motion analysis offers an objective method for evaluating surgical efficiency.

Purpose of the Study:

• To evaluate and compare the functionality and efficiency of standard dissection with ligation, monopolar coagulation, and bipolar scissors.
• To test the efficacy of quantitative time-motion analysis in a clinical setting.
• To assess the safety and efficiency of different surgical dissection and ligation techniques.

Main Methods:

• Quantitative time-motion analysis was used to record and analyze actions during dissection.
• Three techniques (standard, monopolar, bipolar) were applied to porcine small bowel mesentery.
• Efficiency was measured by dissection time and action count; safety by complications and microscopic damage.

Main Results:

• Bipolar scissors were significantly more efficient (7 min, 129 actions) than standard technique (28 min, 771 actions) and monopolar coagulation (14 min, 368 actions).
• Bipolar scissors required less recoagulation (0.5%) and caused smaller damaged zones compared to monopolar coagulation (10.4%).
• Time-motion analysis demonstrated objective and reproducible results (ICC 0.98), highlighting bipolar scissors' superiority.

Conclusions:

• Time-motion analysis provides an objective method for comparing surgical techniques.
• Bipolar scissors are more efficient and safer for vessel coagulation than monopolar coagulation.
• Bipolar scissors offer significant advantages in efficiency and safety over standard dissection and monopolar coagulation.