PCL balancing in knee replacement
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- DEPUY (IRELAND) LTD
- Filing Date
- 2022-12-20
- Publication Date
- 2026-05-27
AI Technical Summary
Existing knee replacement surgeries often overlook the complex interaction of soft tissue structures, particularly the posterior cruciate ligament (PCL), leading to potential laxity or tension issues due to improper implant positioning.
A data processing method and apparatus that determine the PCL attachment points on the femur and tibia, measure displacement and rollback, and calculate required PCL length as a function of knee angle, allowing for real-time adjustment of implant positions to ensure optimal PCL length and reduce laxity or tension.
Enables precise planning of knee implants by considering PCL dynamics, reducing the need for post-operative corrections and improving surgical outcomes by maintaining balanced soft tissue tension throughout the knee's range of motion.