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Reproducibility of MRI in the diagnosis of meniscal ramp lesions: an inter-observer study
Sara Escoda Menéndez1, Pedro García González1, Ana Rosa Meana Morís2
1Department of Radiology, Clínica Molinón, Gijón, Asturias, Spain.
Background:
Meniscal ramp lesions have gained much prominence in recent years due to a significant increase in their diagnosis and their important biomechanical involvement in the knee. A new proposed classification of these lesions has recently been published.
Purpose:
To evaluate the reproducibility of the new classification of meniscal ramp lesions recently published using magnetic resonance imaging (MRI).
Material And Methods:
A total of 249 post-traumatic knee MRI studies were evaluated by three musculoskeletal radiologists independently. Patients with an anterior cruciate ligament (ACL) tear on MRI in addition to a recent history of trauma to the knee for <12 months were included in the study, for a total of 95. We carried out an inter-observer concordance study to analyze whether the new classification is reproducible to detect meniscal ramp lesions and to classify them into their different types.
Results:
Among our study cohort of 95 patients, we found 47 (49.5%) ramp lesions. In the inter-observer study, we obtained a good concordance (k = 0.733) in the detection of these lesions and an excellent one (k = 0.843) when the type of lesion is described.
Conclusion:
This study demonstrates that the new classification of meniscal ramp lesions has good reproducibility on MRI.
Insights
The new classification for meniscal ramp lesions shows good reproducibility in magnetic resonance imaging (MRI) detection and typing. This finding supports its clinical utility for diagnosing these knee injuries.
Area of Science:
- Orthopedic Surgery
- Radiology
- Sports Medicine
Background:
- Meniscal ramp lesions are increasingly diagnosed due to their biomechanical significance in knee injuries.
- A novel classification system for meniscal ramp lesions has been recently introduced.
Purpose of the Study:
- To assess the reproducibility of a new meniscal ramp lesion classification system.
- To evaluate diagnostic accuracy using magnetic resonance imaging (MRI).
Main Methods:
- Three musculoskeletal radiologists independently reviewed 249 knee MRI scans.
- 95 patients with anterior cruciate ligament (ACL) tears and recent knee trauma were included.
- An inter-observer concordance study analyzed lesion detection and classification reproducibility.
Main Results:
- 47.5% of patients (49.5%) had meniscal ramp lesions.
- Good concordance (k=0.733) was achieved for lesion detection.
- Excellent concordance (k=0.843) was observed for lesion type classification.
Conclusions:
- The new classification system for meniscal ramp lesions demonstrates good reproducibility on MRI.
- This supports its reliable application in clinical practice for diagnosing knee injuries.
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