الفهرس 
ANATOMYOnly 14 pages are availabe for public view
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Abstract
Abstract
Background: The posterolateral corner (PLC) was once regarded as the “dark side of the knee” owing to the complex and variable anatomy superimposed on the inconsistent terminology used in the literature to describe the structures in this region.
Aim of the Work: To describe the role of MRI in assessment of posteriolateral corner injury of knee joint.
Patients and Methods: This cross sectional study was conducted in department of Radiology in Ain Shams University, the data collected from database to reach sample size number and enrolled data of 20 patients in period was 18-24 months.
Results: We were able to show that the MRI procedure we gave accurately visualises the majority of the complex individual components of the posterolateral knee, as well as damage to these structures, in this investigation. When the diagnosis of grade III injuries to the posterolateral knee is in doubt, we believe that MRI of the posterolateral knee is a useful complement to the surgeon. In our capacity to correctly diagnose damaged structures on MRI, there were no clear differences between acute and chronic knee injuries. On MRI, avulsions or tears of the direct arm or anterior arm insertion off the fibular styloid show focal discontinuity, nonvisualization, increased signal intensity, or proximal retraction, often with a contemporaneous bone avulsion. The damage pattern can also be seen in axial and sagittal views.
Conclusion: When posterolateral rotatory instability is suspected, the MRI approaches that described for visualizing particular injuries to the posterolateral knee will almost always reveal the bulk of the affected structures. When a posterolateral knee injury is assessed on MRI, using a special MRI protocol that covers the full fibular head and styloid on all imaging sequences will help in identifying these structures