The CT knee arthrogram revisited

Area of Science:

• Orthopedic imaging
• Radiology
• Diagnostic techniques

Background:

• Magnetic resonance imaging (MRI) is typically preferred for joint imaging due to superior resolution.
• Computed tomography (CT) arthrography is an underutilized diagnostic tool for joint assessment.
• CT arthrography offers dynamic assessment capabilities and potential management options for specific knee conditions.

Purpose of the Study:

• To highlight the diagnostic value of CT arthrography for the knee joint.
• To present standard CT arthrography techniques for knee imaging.
• To illustrate the appearance of various knee joint pathologies on CT arthrography.

Main Methods:

• This is a pictorial essay.
• Standard CT arthrography techniques are discussed.
• Various knee joint pathologies and their imaging appearance are reviewed.

Main Results:

• CT arthrography provides valuable insights into knee joint anatomy and pathology.
• Dynamic assessment of the knee joint is possible with CT arthrography.
• Specific pathologies demonstrate characteristic appearances on CT arthrograms.

Conclusions:

• CT arthrography is an important, though often overlooked, diagnostic study for the knee.
• It offers complementary information to MRI, particularly for dynamic assessment.
• Understanding CT arthrography techniques and findings aids in diagnosing knee joint conditions.