Yangtze INS Knee Joint Replacement Navigation System

Developed by Chunli Medical, the Yangtze INS Knee Joint Replacement Navigation System provides computerized surgical guidance for total knee arthroplasty using handheld instruments rather than traditional robotic arms. This approach preserves direct surgeon control while delivering precise bone resection guidance, addressing clinical needs for accurate prosthesis positioning during knee replacement procedures.

Product Overview

The Yangtze INS knee navigation platform represents a departure from conventional surgical robot design. Where most orthopedic robots employ robotic arms to physically guide or execute bone cuts, this system provides navigation data through handheld tools that surgeons manipulate directly. The design philosophy prioritizes leveraging surgeon experience while solving precision and accuracy challenges inherent in manual techniques.

Total knee arthroplasty demands precise bone resection across multiple surfaces—the distal femur, proximal tibia, and posterior femoral condyles. Traditional surgery relies heavily on mechanical alignment guides and surgeon experience, with outcomes varying based on individual skill levels. Navigation systems address this variability by providing real-time feedback on instrument position relative to planned cutting paths.

Key Features

Handheld Navigation Instruments: Cutting tools equipped with position sensors that communicate with the navigation workstation, displaying instrument orientation relative to planned bone cuts without physically constraining surgeon movement.

Surgeon-Controlled Operation: Unlike robotic arm systems that may limit or guide movement, the handheld approach keeps surgeons in direct control. The system provides guidance information while allowing natural surgical technique.

Flexible Surgical Workflow: The platform adapts to various surgical approaches and hospital environments, with equipment that integrates into existing operating room setups.

Real-Time Feedback: Visual displays showing current instrument position against planned resection planes, enabling surgeons to adjust technique during cutting.

Technical Specifications

Approved by NMPA in 2024, Yangtze INS Knee delivers position-sensing guidance for total knee arthroplasty bone resection through handheld instruments, with no robotic arm required.

Clinical Applications

The primary indication is total knee arthroplasty for patients with:

• Osteoarthritis with significant joint degeneration
• Rheumatoid arthritis affecting knee joint function
• Post-traumatic arthritis following knee injury
• Failed previous partial or total knee replacement

The navigation system aims to improve bone cut accuracy, potentially enhancing prosthesis alignment and long-term outcomes. Precise positioning affects factors including ligament balance, range of motion, and implant longevity.

Regulatory Status

The knee navigation system received NMPA approval in 2024 as part of Chunli Medical’s expansion into surgical robotics alongside its established orthopedic implant business.

Frequently Asked Questions

How does the Yangtze INS differ from robotic arm systems?

Traditional orthopedic robots use robotic arms that physically guide or constrain cutting instruments. The Yangtze INS instead equips handheld tools with position sensors, providing navigation data that surgeons interpret while maintaining complete manual control. This design preserves surgeon technique while adding computerized guidance.

What procedures can this system perform?

The knee navigation system is currently approved for total knee arthroplasty (TKA). It guides bone resection across the femoral and tibial surfaces required for implanting knee prosthesis components.

Does using this system require special training?

Surgeons familiar with knee replacement procedures can adapt to the navigation platform, though specific training on system operation and interpretation of navigation data is recommended. The handheld approach maintains familiar surgical technique while adding technology-assisted guidance.