New Robotic System with Wristed Microinstruments Allows Precise Reconstructive Microsurgery: Preclinical Study.

Area of Science:

• Minimally Invasive Surgery
• Robotic Surgery
• Microsurgical Techniques

Background:

• Microsurgery is crucial for tissue reconstruction but limited by human dexterity and tremor.
• A novel robotic system with wristed microinstruments and motion scaling aims to overcome these limitations.
• This study evaluated the robotic system's efficacy in microsurgical tasks.

Purpose of the Study:

• To assess the precision and feasibility of a new robotic system for microsurgical needle driving, suturing, and anastomosis.
• To compare robotic-assisted microsurgery with traditional manual techniques.
• To evaluate the impact of the robotic system on surgeon performance and learning curves.

Main Methods:

• A randomized controlled preclinical trial involving expert and novice microsurgeons.
• Participants performed needle passage exercises and anastomoses manually and with the robotic system.
• Objective assessments included suturing precision (distance, angulation) and anastomosis quality (time, learning curves, Anastomosis Lapse Index).

Main Results:

• Robotic-assisted suturing demonstrated significantly improved precision in suture distance and angulation compared to manual methods.
• Microsurgical anastomoses took longer with the robot, but both expert and novice surgeons improved with practice.
• Novice surgeons showed better objective outcomes for anastomoses performed with the robotic system.

Conclusions:

• The new robotic system is feasible for precise microsutures and anastomoses.
• Robotic microsurgery offers enhanced precision over manual techniques, despite increased procedure time.
• This technology has the potential to improve outcomes in reconstructive microsurgery.