Reporting knee meniscal tears: technical aspects, typical pitfalls and how to avoid them.

Area of Science:

• Orthopedic imaging
• Radiology
• Knee diagnostics

Background:

• Magnetic resonance imaging (MRI) is the gold standard for diagnosing meniscal lesions.
• MRI findings significantly influence treatment decisions, potentially avoiding unnecessary arthroscopy.
• Accurate knee MRI interpretation relies on technical factors and anatomical knowledge.

Purpose of the Study:

• To highlight the critical role of MRI in meniscal lesion diagnosis.
• To emphasize the importance of technical parameters in achieving high-resolution knee imaging.
• To underscore the necessity of understanding meniscal anatomy for accurate tear classification.

Main Methods:

• Utilizing dedicated high-resolution orthopedic radiofrequency coils.
• Employing knee MRI protocols with high-spatial resolution sequences in sagittal, coronal, and axial planes.
• Maintaining slice thickness of 3 mm or less for detailed visualization.

Main Results:

• High homogeneity of signal and high-resolution images are achieved with appropriate coils and protocols.
• Awareness of normal tibial and capsular attachments is vital to prevent interpretation errors.
• Accurate description of meniscal tears necessitates knowledge of lesion patterns and classification systems.

Conclusions:

• Technical factors significantly impact MRI interpretation accuracy.
• Lack of awareness regarding normal meniscal anatomy can lead to diagnostic pitfalls.
• Comprehensive understanding of meniscal tear classification is essential for radiologists.