ankle MRI.pptx [Repaired].pptx

ErumKhatri1 130 views 114 slides Apr 30, 2023
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Size: 12.28 MB
Language: en
Added: Apr 30, 2023
Slides: 114 pages

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ANKLE MRI ANATOMY DR SANIA HASNAIN

CHECKLIST FOR REPORTING Bones: S creen on fatsat images for bone marrow edema. Joint: Screen for effusion and look at the joint capsule for thickening. Ligaments: Check the syndesmosis , the lateral and medial ligaments. Tendons: Check the tendons using the four quadrant approach; Flexors on the medial side. Achilles tendon posteriorly. Peroneal tendons on the lateral side. Extensors on the anterior side.

BONES Large joint made up of three bones: The shin bone (tibia) The thinner bone running next to the shin bone (fibula) A foot bone that sits above the heel bone (talus)

In addition to the bony structures of the ankle - the distal tibia, distal fibula and talus , the calcaneum , navicular and cuboid bone as well as the three cuneiforms and the bases of the metatarsal bones and their alignment are assessed. Osseous tumors, ankle fractures / stress fractures, bone marrow changes are noted.

ACCESSORY OSSICLES Common developmental variants. Over 40 types identified.

STIEDA PROCESS Elongated lateral tubercle of the posterior process of the talus Related pathology Acute fracture C an be associated with posterior ankle impingement syndrome from impingement between the tibia and the calcaneus, especially in plantar flexion. In some symptomatic situations, it is resected

LIGAMENTS Four major ligamentous stabilizers Medial collateral ligament Lateral collateral ligament Syndesmotic complex Interosseous ligament

DELTOID LIGAMENT Best evaluated in the coronal plane . 5 components. Serves as a hammock for the talus . Two parts , Superficial and deep. Continuous with spring ligament.

LATERAL COLLATERAL LIGAMENT Five components Anterior talofibular ligament Posterior talofibular ligament Calcaneofibular ligament Anterior tibiofibular ligament Posterior tibiofibular ligament

SYNDESMOTIC COMPLEX Consists of three stabilizing components of the inferior tibiofibular articulation. Anterior tibiofibular ligament. Posterior tibiofibular ligament. Interosseous membrane.

TENDONS Four compartments Medial : Tibialis Posterior Flexor Digitorum Flexor Hallucis Longus Posterior Achilles Plantaris

Lateral Peroneus Longus Peroneus Brevis Anterior Tibialis Anterior Extensor Hallucis Longus Extensor Digitorum

ACCESSORY MUSCLES Usually asymptomatic. C an be a cause of impingement in specific patient groups (dancers, athletes)

ACCESSORY SOLEUS

ACCESSORY FLEXOR HALLUCIS LONGUS

HYPERTROPHIC PLANTARIS
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