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'Skywalker' surgical robot for total knee arthroplasty: An experimental sawbone study
Runzhi Xia1, Zhicheng Tong1, Yi Hu1
1Department of Orthopaedic Surgery, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Summary
The Skywalker robot-assisted system demonstrates high accuracy in total knee arthroplasty (TKA) osteotomy, achieving planned cuts with minimal deviation. This technology shows promise for improving surgical precision in TKA procedures.
Area of Science:
- Orthopedic Surgery
- Robotics in Medicine
- Surgical Navigation
Background:
- Robot-assisted surgical systems aim to enhance precision in total knee arthroplasty (TKA).
- Reducing osteotomy and component positioning errors is crucial for TKA success.
Purpose of the Study:
- To evaluate the osteotomy accuracy of the 'Skywalker' robot-assisted TKA system.
- To assess the system's ability to perform planned bone cuts in TKA.
Main Methods:
- Utilized 20 sawbone femur and 20 tibia/fibula models.
- Evaluated the osteotomy effect of the 'Skywalker' robot-assisted TKA system on these models.
Main Results:
- Maximal cutting jig movement was under 0.25 mm.
- Angular deviation between planned and actual osteotomy planes was minimal (≤1.03° mean, ≤0.55° std dev).
- Resection thickness error was also low (≤0.78 mm mean, ≤0.71 mm std dev).
Conclusions:
- The 'Skywalker' system exhibits excellent osteotomy accuracy.
- The system effectively achieves planned osteotomies.
- It is anticipated to aid surgeons in performing precise TKA clinically.
