MR imaging of the meniscus: review, current trends, and clinical implications

Area of Science:

• Orthopedics
• Radiology
• Medical Imaging

Background:

• Magnetic resonance (MR) imaging is the primary method for evaluating meniscal injuries.
• Accurate diagnosis of meniscal tears relies on a deep understanding of normal anatomy, common variants, and potential interpretation challenges.

Purpose of the Study:

• To highlight the importance of precise description of meniscal tears.
• To review current and emerging diagnostic and treatment strategies for meniscal tears.
• To discuss the complexities of diagnosing recurrent tears after meniscal surgery.

Main Methods:

• Review of current literature and clinical practice regarding MR imaging of the meniscus.
• Emphasis on the diagnostic criteria and interpretation of meniscal abnormalities.
• Discussion of advanced MR techniques and their role in meniscal evaluation.

Main Results:

• MR imaging demonstrates high accuracy for meniscal tear diagnosis in patients without prior surgery when strict criteria are applied.
• Accurate interpretation is contingent upon comprehensive knowledge of meniscal anatomy and potential diagnostic pitfalls.
• Diagnosing recurrent tears in post-surgical patients presents challenges, with MR arthrography offering a potential solution.

Conclusions:

• MR imaging is a valuable tool for meniscal tear assessment, but requires expertise for accurate interpretation.
• Proper description of tears and understanding of post-surgical changes are crucial for effective patient management.
• Advancements in MR technology, such as 3 Tesla (3T) and parallel imaging, promise improved diagnostic capabilities and efficiency.