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Use of Micro X-ray Computed Tomography with Phosphotungstic Acid Preparation to Visualize Human Fibromuscular Tissue
Published on: September 5, 2019
Popliteomeniscal fascicles: anatomic considerations using MR arthrography in cadavers.
Anthony J Peduto1, Alison Nguyen, Debra J Trudell
1Department of Radiology, Veterans Affairs Healthcare System, San Diego, CA, USA.
AJR. American Journal of Roentgenology
|January 24, 2008
Summary
Three popliteomeniscal fascicles were identified in knee MR arthrography. These fascicles, along with popliteus muscle attachments, are crucial for posterolateral knee stability.
Area of Science:
- Orthopedic anatomy
- Radiology
- Knee biomechanics
Background:
- The popliteomeniscal fascicles are key structures in knee anatomy.
- Understanding their normal appearance on MR arthrography is essential for diagnosing posterolateral instability.
Purpose of the Study:
- To detail the normal MR arthrographic anatomy of popliteomeniscal fascicles.
- To identify the number, thickness, course, and posterior attachments of these fascicles.
Main Methods:
- 1.5-T MR arthrography was performed on 10 cadaveric knees.
- Specimens were sectioned sagittally, axially, and coronally.
- Radiologists correlated MR images with anatomic specimens.
Main Results:
- Three popliteomeniscal fascicles were consistently identified: anteroinferior, posterosuperior, and posteroinferior.
- The anteroinferior fascicle showed variable thickness and a conjoined fibular attachment.
- The popliteus musculotendinous region demonstrated extensive posterior attachments.
Conclusions:
- MR arthrography reveals three distinct popliteomeniscal fascicles.
- The popliteus muscle-tendon unit's extensive attachments underscore its role in knee posterolateral stability.
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