Anterior talofibular ligament tear
Ankle twist - 6 wks back. C/o pain, swelling lateral ankle region.
Initial radiograph - No bony injury ( Not uploaded, No copyright )
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Anterior talo-fibular ligament - not visualized - complete tear
Anterior tibio - fibular ligament - Intact, normal.
Calcano-fibular ligament - thick, hypoechoic.
Peroneal tendons - Intact.- Normal echopattern.
There is ankle joint effusion. Fluid in region of talofibular ligament is seen extending upto subcutaneous plane in antero-lateral ankle region.
There is complete tear of anterior talofibular ligament with tear of overlying joint capsule suggested by joint fluid extension to subcutaneous plane. There is calcano-fibular ligament sprain.
MR was done; showing similar findings ( not uploaded, no copy right ).