MR imaging evaluation of the postoperative knee

Area of Science:

• Orthopedics
• Radiology
• Sports Medicine

Background:

• Increasing numbers of knee arthroscopies and surgeries for sports injuries necessitate post-operative imaging.
• Evaluating post-operative knee complications like treatment failure, symptom recurrence, or new injuries is critical.

Purpose of the Study:

• To highlight the importance of magnetic resonance (MR) imaging in the post-operative evaluation of the knee.
• To discuss how surgical changes complicate MR imaging diagnosis.
• To introduce MR arthrography as a method to improve the evaluation of the meniscus and anterior cruciate ligament (ACL) grafts.

Main Methods:

• Review of magnetic resonance (MR) imaging techniques for post-operative knee assessment.
• Focus on the utility of MR arthrography in specific post-surgical scenarios.
• Emphasis on recognizing normal and abnormal post-operative MR imaging findings.

Main Results:

• Magnetic resonance (MR) imaging is the primary modality for post-operative knee evaluation.
• Surgical alterations present diagnostic challenges in MR imaging.
• MR arthrography improves the assessment of the meniscus and potentially ACL grafts.

Conclusions:

• Accurate interpretation of post-operative knee MR imaging requires understanding normal anatomical changes and potential abnormalities.
• MR arthrography is a valuable adjunct for evaluating specific structures like the meniscus and ACL grafts after knee surgery.
• Effective MR imaging is essential for diagnosing complications and guiding patient management following knee procedures.