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Robot-Based Minimally Invasive Spherical Osteotomy System Improves the Accuracy and Reproducibility of the Resulting
Ruo-Tao Liu1, Qian Tang1, Jin-Shan Zhang2
1Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Summary
The minimally invasive spherical osteotomy assistant system (MISOS) significantly improves surgical precision compared to freehand methods. This robotic system enhances control for accurate spherical osteotomies in orthopaedic surgery.
Area of Science:
- Orthopaedic Surgery
- Robotic Surgery
- Surgical Technology
Background:
- Manual spherical osteotomy presents challenges in control and precision.
- A novel minimally invasive spherical osteotomy assistant system (MISOS) utilizing a multi-axis surgical robot was developed.
- MISOS aims to enhance the accuracy and stability of spherical osteotomies.
Purpose of the Study:
- To evaluate the feasibility and efficacy of the MISOS system.
- To compare the precision of MISOS-assisted osteotomy with freehand techniques.
- To assess the system's performance on acetabulum, femur, and tibia sawbone models.
Main Methods:
- The MISOS system's performance was tested on human sawbone models.
- Osteotomy centre deviation and section curvature were measured and compared.
- Data analysis focused on acetabulum, femur, and tibia specimens.
Main Results:
- MISOS demonstrated significantly superior centre deviation for acetabulum, femur, and tibia compared to freehand methods.
- Curvature deviation was also significantly reduced with MISOS across all tested bone types.
- Specific quantitative improvements in millimeters and degrees highlight MISOS's precision.
Conclusions:
- The MISOS system is a promising assistive tool for minimally invasive orthopaedic spherical osteotomy.
- The system offers enhanced accuracy and stability in surgical procedures.
- MISOS has potential for wider clinical adoption in orthopaedic surgery.
