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Arthroscopic Centralization During Meniscal Allograft Transplantation
Saagar Dhanjani1,2, Tim Wang3
1Shiley Center for Orthopaedic Research and Education, Scripps Clinic, La Jolla, California, U.S.A.
Arthroscopy Techniques
|January 16, 2026
Summary
Pathologic meniscal extrusion can negatively impact knee joint mechanics. This technical note describes a method to centralize meniscus allografts during transplantation to improve outcomes.
Area of Science:
- Orthopedic surgery
- Biomechanical engineering
- Sports medicine
Background:
- Pathologic extrusion of the meniscus, defined as displacement >3 mm beyond the tibial plateau, disrupts tibiofemoral mechanics.
- Meniscal extrusion after meniscus allograft transplantation (MAT) is common, with reported rates exceeding 40%.
Purpose of the Study:
- To describe a technical method for achieving centralization of a meniscus allograft during transplantation.
- To address the common complication of meniscal extrusion following MAT.
Main Methods:
- This technical note details a specific surgical technique for meniscus allograft transplantation.
- The described method focuses on securing the allograft to prevent displacement beyond the tibial plateau.
Main Results:
- The described technique aims to minimize meniscal extrusion, thereby restoring normal hoop strain resistance.
- Improved centralization is expected to reduce articular cartilage contact pressures.
Conclusions:
- Centralizing meniscus allografts during transplantation is crucial for optimizing biomechanical function.
- This technique offers a potential solution to reduce meniscal extrusion rates and improve long-term outcomes in MAT.
