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Collaborative spinal robot system for laminectomy: a preliminary study.

Zhuofu Li^1,2,3, Shuai Jiang^1,2,3, Xiongkang Song⁴

¹1Department of Orthopaedics, Peking University Third Hospital, Beijing.

Neurosurgical Focus

|January 1, 2022

Summary

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This study found that robot-assisted laminectomy (RAL) is safe, with less lamina penetration than manual laminectomy (ML). However, RAL took longer, indicating a need for efficiency improvements in this spine surgery technique.

Area of Science:

Spine surgery innovations
Robotics in medicine
Surgical technique comparison

Background:

Robot-assisted surgery shows promise in spinal procedures.
Decompressive laminectomy currently lacks mature robotic systems.
A novel collaborative spine robot was developed for laminectomy assistance.

Purpose of the Study:

To evaluate the safety and reliability of a new collaborative spine robot for laminectomy.
To compare robot-assisted laminectomy (RAL) with manual laminectomy (ML).

Main Methods:

Thirty porcine lumbar vertebral specimens were used for in vitro testing.
RAL and ML were performed on opposing sides of the lamina in each specimen.
Key metrics included procedure time, lamina penetration, and remaining lamina thickness.

Keywords:

piezoelectric osteotome system robot-assisted laminectomy robotic surgical procedures spine surgery state recognition

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Main Results:

RAL required significantly more time (326s vs 108.5s) compared to ML.
Complete lamina penetration was significantly lower in RAL (6.7%) versus ML (30%).
No significant difference was found in the remaining lamina thickness between RAL and ML.

Conclusions:

The novel collaborative spine robot system demonstrates safety for laminectomy.
The system's efficiency needs further enhancement for clinical viability.
Robot-assisted laminectomy shows potential for reducing unintended lamina penetration.