الفهرس 
Gross Anatomy of the Ankle (Talocrural) JointOnly 14 pages are availabe for public view
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Abstract
U
ltrasound examination is excellent in detection of soft tissue abnormalities including tendon abnormalities, ligament abnormalities, joint effusion and ganglion cysts. There are significant advantages to ultrasound over other imaging methods because of its resolution, its ability to image an entire extremity over a short period of time, its ability to image around hardware without artifact, and its ability to image dynamically.
MRI examination clearly demonstrates the soft tissue abnormalities detected by ultrasound and can also detect bony abnormalities like marrow edema, osteochondritis dessicans, bone tumors, impingement syndromes and entrapment neuropathy.
The aim of this study is to evaluate the role of ultrasound and MRI in diagnosis of ligament injury.
This study included thirty patients; 12 males and 18 females with age ranged from 20 to 51 years (mean age 35.5 years).
All patients were subjected to clinical evaluation including full history taking and thorough clinical evaluation as well as radiological evaluation by both ultrasound and MRI examinations.
Ultrasonography couldn’t detect injuries of the posterior talo-fibular ligament as well as posterior tibio-fibular ligament while MRI could clearly detect them. But ultrasound examined other ligaments with excellent specificity (100%) and very good sensitivity for most of examined ligaments.
Regarding calceneo-fibular ligament both ultrasound and MRI have the same sensitivity and specificity.
Ultrasonography could detect some cases of postero-medial impingement syndromes (caused by deltoid ligament injury), however it couldn’t detect cases of posterior or anterior impingement (usually caused by bony abnormalities), these cases were better assessed by MRI examination.
Limitations of the study:
The small amount of the examined cases, as we have only 30 cases with multiple pathological entities.
Ultrasound is an operator dependant machine.
Many patients refused MRI examination and other patients have issues preventing them from entering MRI machine like patient with pace maker … etc.
In conclusion:
Regarding ligament injuries, both ultrasonography and MRI were nearly similar in evaluation of various injuries including sprain, partial tear and complete tear with high advantage to MRI over ultrasound examination.
Most cases of impingement syndromes as well as bony abnormalities were only detected by MRI examination.