Cutting surgical robot CUVIS-joint

guidingsurgical navigationorthopedic surgery

Overview
CUVIS-joint is a surgical robot system that supports planning and precise execution of joint arthroplasty (knee and hip). The platform combines pre-operative 3D CT analysis, navigation-based active cutting and real-time intra-operative assessment to assist surgeons in reproducing planned resection and balancing targets. As an open-platform system, it integrates with various implant systems and clinical workflows.

Key Benefits and Features

• Supported procedures: Total Knee Arthroplasty (TKA), Unicompartmental Knee Arthroplasty (UKA), Total Hip Arthroplasty (THA).
• 3D CT-based surgical planning: detailed patient bone morphology analysis from pre-operative CT with implant size prediction (femoral ~98.9% prediction rate; tibial 100% prediction rate).
• Precise bone resection: robotic arm executes bone cuts with an error margin within 1 mm (98% of cuts within planned range).
• Sophisticated angle control: cutting angle RMS error maintained < 1 degree to reproduce simulation in the operating room.
• Real-time gap balancing: intra-operative medial and lateral gap checking and adjustment to support ideal soft tissue balance.
• Functional alignment: determines optimal rotational alignment based on patient-specific axes (TEA, PCA) rather than simple mechanical straightening.
• Joint line restoration and soft tissue preservation: maintains average joint line height change of ~1.65 mm and reduces unnecessary soft tissue releases.
• Open-platform compatibility: supports multiple implant systems and navigation-based active cutting workflows.

Clinical Evidence / References

• Adkar N, et al. Correlation Between Planned and Executed Bone Cuts Using Robotics in Total Knee Arthroplasty: A Prospective Study of 500 Patients. Indian Journal of Orthopaedics. 2024.
• Patil S, Wankhede C. Achieving Accuracy and Gap Balancing with Fully Autonomous Cuvis Joint Robot Assisted Total Knee Arthroplasty: A Single-Center, Non-Randomized Retrospective Study. Journal of Orthopaedic Reports. 2024.
• Bhat AK, et al. Gap Balancing Technique With Functional Alignment in Total Knee Arthroplasty Using the Cuvis Joint Robotic System: Surgical Technique and Functional Outcome. Cureus. 2025.
• Jung WH, et al. Evaluating the Accuracy of Cuvis™ Robot Assisted Total Knee Arthroplasty Using Offset Type Tensor System in Ligament Gap Balancing. Journal of Clinical Orthopaedics and Trauma. 2025.
• Londhe SB, et al. Evaluation of the External Rotation of the Femur Component in Functionally Aligned Robotic-Assisted Total Knee Arthroplasty. Cureus. 2024.
• Murugesan HK, et al. Assessment of Average Femoral Component Rotation for Balancing Functionally Aligned Total Knee Replacement in Varus Deformity: Robotic Image Guidance Study. Journal of Orthopaedics. 2024.
• Additional clinical and retrospective studies listed on product materials addressing accuracy, gap balancing, soft tissue preservation and early clinical outcomes.

Safety and Regulatory Notes
CUVIS-joint devices are medical robots. Refer to the user manual, cautions and instructions before use. The summarized benefits and safety data are based on published clinical studies using CUVIS-joint; outcomes may vary by patient and procedure.

Specifications / Technical data

• Product name: CUVIS-joint
• Manufacturer / Brand: CUREXO
• Supported surgical procedures: TKA, UKA, THA
• Surgical planning: pre-operative 3D CT analysis with implant size prediction (femoral ~98.9%, tibial 100%)
• Bone resection accuracy: within 1 mm error margin (98% within planned range)
• Cutting angle accuracy: RMS error < 1 degree
• Real-time intra-operative features: gap balancing, soft tissue balance assessment, joint line restoration (average change ~1.65 mm)
• Platform: open-platform robot supporting various implant systems and navigation-based active cutting
• Clinical evidence: multiple peer-reviewed studies and case reviews documented