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Does the Lens Deflection Angle Affect Laparoscopic Camera Navigation?

Yi Luo1, Ziyan Chen2,3, Bin Luo3,4

  • 1Urology Department, Xiaogan First People's Hospital, Xiaogan, China.

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Novice laparoscopic surgeons struggle with camera navigation, leading to significant horizontal axis deflection. Training focused on this deflection angle can improve skills and patient safety in laparoscopic surgery.

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camera’s horizontal axisdeflection angleinclinometerlaparoscopic camera navigationlaparoscopic training

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Area of Science:

  • Surgical Technology
  • Medical Training
  • Laparoscopic Surgery

Background:

  • Maintaining a stable camera view is crucial in laparoscopic surgery.
  • Inexperienced surgeons often face challenges with camera navigation, impacting surgical precision.
  • A 30° lens, while offering a wider view, complicates maintaining the camera's horizontal axis.

Purpose of the Study:

  • To develop an evaluation and training system for laparoscopic camera navigation (LCN).
  • To assess the value of a deflection angle-based system in surgical training.
  • To quantify differences in camera horizontal axis control between novice and skilled surgeons.

Main Methods:

  • Recruited 15 novice and 15 skilled surgeons for an LCN exercise.
  • Utilized an inclinometer module to measure the camera's horizontal axis deflection angle.
  • Compared deflection angles between novice and skilled surgical groups.

Main Results:

  • Novices showed significantly greater horizontal axis deflection (e.g., >±15° in 57.98%) compared to skilled surgeons (>±15° in 31.76%).
  • Significant differences in maintaining the camera's horizontal axis were observed between skill levels.
  • All deflection angle thresholds (15°, 30°, 45°, 60°) showed significant differences between groups.

Conclusions:

  • A notable skill gap exists in maintaining camera horizontal axis stability during LCN.
  • Training programs focusing on camera deflection angles can enhance novice surgeons' fundamental skills.
  • This system has potential value for improving laparoscopic surgery training and clinical application.