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A comparative cadaveric study for percutaneous scaphoid fixation: robotic vs freehand.

Yaobin Yin1, Zhixin Wang1, Zhe Yi1

  • 1Department of Hand Surgery, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China.

International Orthopaedics
|October 24, 2023
PubMed
Summary

Robotic-assisted surgery for scaphoid fracture fixation significantly reduces guidewire attempts and radiation exposure compared to the traditional freehand method. This advanced technique ensures accurate screw placement with improved efficiency.

Keywords:
Computer-assisted surgeryPercutaneous fixationRobotic surgical proceduresScaphoid fracture

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Area of Science:

  • Orthopedic Surgery
  • Robotics in Medicine
  • Biomechanical Engineering

Background:

  • Scaphoid fractures are common wrist injuries requiring precise fixation.
  • Traditional freehand percutaneous scaphoid fixation can be challenging, leading to multiple attempts and increased radiation exposure.
  • Advancements in robotic technology offer potential improvements in surgical accuracy and efficiency.

Purpose of the Study:

  • To compare robotic-assisted versus traditional freehand percutaneous scaphoid fixation.
  • Key metrics include guidewire attempts, fluoroscopy time, radiation dose, and screw centrality.
  • Evaluate the impact of surgical technique on operative efficiency and accuracy.

Main Methods:

  • Twenty cadaveric specimens were randomized into robotic and freehand groups.
  • Percutaneous scaphoid fixation was performed by experienced hand surgeons.
  • Data collected included operation duration, radiation dose, fluoroscopy time, and guidewire attempts.
  • Postoperative CT scans assessed screw centrality relative to the scaphoid axis.

Main Results:

  • Robotic group: All guidewires placed in a single attempt; significantly lower radiation dose and fluoroscopy time.
  • Freehand group: Median of 18 guidewire attempts.
  • No significant difference in final screw centrality between groups.
  • Attending surgeons were faster than residents in the freehand group.

Conclusions:

  • Robotic-assisted scaphoid fixation is superior to the freehand method.
  • The robotic approach enhances accuracy, reduces radiation exposure, and minimizes guidewire attempts.
  • This technology improves efficiency and patient safety in scaphoid fracture treatment.