Lisfranc joint ligamentous complex: MRI with anatomic correlation in cadavers

Area of Science:

• Orthopedic anatomy
• Radiological imaging
• Foot and ankle surgery

Background:

• The Lisfranc joint complex is crucial for foot stability.
• Accurate anatomical understanding is vital for diagnosing Lisfranc joint injuries.
• MRI's role in detailing Lisfranc ligamentous anatomy requires further elucidation.

Purpose of the Study:

• To delineate the ligamentous anatomy of the Lisfranc joint complex.
• To assess the diagnostic capability of MRI in evaluating the Lisfranc joint complex.
• To correlate MRI findings with detailed cadaveric anatomy.

Main Methods:

• High-spatial-resolution MRI was performed on 10 fresh cadaveric feet.
• Intraarticular gadolinium contrast injection was used to enhance visualization.
• Cadaveric specimens were sectioned and dissected for detailed anatomical correlation.

Main Results:

• MRI successfully identified and characterized all major ligamentous structures of the Lisfranc joint complex.
• The Lisfranc ligament and plantar Lisfranc ligament dimensions were measured.
• High-resolution MRI demonstrated excellent visualization of the ligamentous anatomy.

Conclusions:

• MRI provides a clear definition of normal ligaments stabilizing the Lisfranc joint.
• This detailed anatomical understanding aids in precise diagnosis of Lisfranc joint instability.
• MRI facilitates better surgical management by improving the understanding of ligamentous components.