[Bone morphing system for ligament balancing in total knee arthroplasty]

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Medical Imaging

Context:

• Total knee arthroplasty (TKA) requires precise ligament balancing for optimal function.
• Traditional methods can be limited by imaging and intraoperative variability.
• Image-free computer-assisted systems offer a potential solution for improved accuracy.

Purpose:

• To evaluate the effectiveness of the Bone Morphing based image-free computer-assisted system in TKA.
• To assess its role in ligament balancing and component alignment.
• To determine the system's suitability for routine clinical use.

Summary:

• The study utilized the Ceravision system for TKA in 21 patients, assessing pre- and post-operative alignment and ligament stability.
• Results showed significant improvements in lower limb axis and stress test values compared to preoperative data.
• Post-prosthetic alignment correlated well between the system and X-rays, with no significant difference (P > 0.05).
• Clinical outcomes at 3 months included good range of motion and minimal laxity, with no complications.

Impact:

• The Bone Morphing system enables accurate 3D component alignment and effective ligament balancing in TKA.
• It optimizes bone resection and surgical decision-making for soft tissue release.
• The system contributes to satisfactory initial clinical outcomes and can be integrated into routine TKA procedures.