The Postoperative Meniscus: Anatomical, Operative, and Imaging Considerations

Area of Science:

• Orthopedic surgery
• Radiology
• Knee biomechanics

Background:

• Meniscal surgery is a common orthopedic procedure.
• Patients may require follow-up imaging due to persistent pain, restricted motion, or new injuries.
• Interpreting postoperative imaging necessitates knowledge of normal meniscal anatomy and biomechanics.

Purpose of the Study:

• To review surgical goals and techniques influencing postoperative meniscal imaging appearance.
• To correlate imaging findings with various meniscal tear patterns and surgical interventions.
• To highlight the role of magnetic resonance (MR) imaging in evaluating meniscal repair integrity.

Main Methods:

• Review of current meniscal surgical techniques and their impact on imaging.
• Correlation of imaging findings with different meniscal tear patterns.
• Emphasis on magnetic resonance (MR) imaging for assessing postoperative meniscal status.

Main Results:

• Surgical techniques significantly alter the expected appearance of the meniscus on imaging.
• MR imaging is crucial for evaluating the integrity of meniscal repairs.
• Distinguishing normal postoperative changes from pathologic findings is essential for accurate diagnosis.

Conclusions:

• Accurate interpretation of postoperative meniscal imaging depends on understanding surgical techniques and normal anatomy.
• MR imaging is the primary modality for assessing meniscal repair outcomes.
• Radiologists must be adept at identifying normal postoperative changes versus signs of failure or complications.