Related Experiment Video
Updated: Feb 8, 2026
Robot-assisted Partial Splenectomy
Published on: January 2, 2026
Analysis of procedure time in robot-assisted surgery: comparative study in laparoscopic cholecystectomy
Jelle P Ruurda1, Paul L Visser, Ivo A M J Broeders
1Department of Surgery, University Medical Center Utrecht, The Netherlands.
Introduction:
Robotic surgery systems have been introduced to deal with the basic disadvantages of laparoscopic surgery. However, working with these systems may lead to time loss due to additional robot-specific tasks, such as set-up of equipment and sterile draping of the system. To evaluate loss of time in robot-assisted surgery, we compared 10 robot-assisted cholecystectomies to 10 standard laparoscopic cholecystectomies.
Materials And Methods:
The robot-assisted procedures were performed with the da Vinci telemanipulation system. The total time in the operating room (OR) was scored and divided into preoperative, operative, and postoperative phases. These phases were further divided into smaller time-frames to precisely define moments of time loss.
Results:
The most significant difference between the two groups was found in the preoperative phase. Robot-related tasks led to time loss in all time-frames of this phase. In the operative phase, the trocar entry time-frame was longer in robot-assisted cases than in standard procedures. Additionally, postoperative OR clearing was longer in the robot-assisted cases. Total operating time did not differ significantly between the two procedures.
Conclusion:
Robot-assisted surgery leads to time loss during preparation of routine laparoscopic procedures.
Related Concept Videos
01:20Comparing the Survival Analysis of Two or More Groups
01:05Noncompartmental Analysis: Mean Residence Time
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...
02:26Comparing Copy Number Variations and SNPs
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
01:02Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
02:24Comparative Excretory Systems
01:09Comparing Experimental Results: Student's t-Test