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Meniscal extrusion consensus statement: A collaborative survey within the Meniscus International Network (MenIN)
Filippo Familiari1,2, Jorge Chahla3,4, Riccardo Compagnoni5,6
1Department of Orthopaedic and Trauma Surgery, Magna Graecia University, Catanzaro, Italy.
Summary
Experts recommend a new meniscal extrusion classification system considering factors like laterality, location, age, BMI, and etiology. This system should integrate dynamic factors and clinical outcomes for improved treatment strategies.
Area of Science:
- Orthopedics
- Radiology
- Knee Surgery
Background:
- Meniscal extrusion is a significant knee pathology.
- Current classification systems lack comprehensiveness.
- Standardized definitions are needed for optimal treatment.
Purpose of the Study:
- To survey Meniscus International Network (MenIN) Study Group members on meniscal extrusion classification.
- To identify contentious aspects and establish criteria for an optimal classification system.
- To provide a foundation for new, comprehensive definitions and treatments.
Main Methods:
- Survey administered to international experts in meniscus pathology (MenIN Study Group).
- Data analysis of completed questionnaires presented as counts, percentages, or means.
- Level IV evidence study.
Main Results:
- Key factors for classification include laterality, anatomical location, age, BMI, and etiology.
- Weight-bearing MRI and ultrasound are preferred imaging modalities.
- Classification should address stability, reducibility, progression of osteoarthritis, and clinical outcomes.
Conclusions:
- A new MRI-based classification system for meniscal extrusion is recommended.
- This system should incorporate laterality, location, age, BMI, and etiology.
- Integration of dynamic factors and clinical outcomes is crucial for treatment guidance.
