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Avulsion injury

Changed by Yuranga Weerakkody, 11 Jul 2014

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Avulsion injuries (where a portion of cortical bone is ripped from the rest of the bone by the attached tendon) are common among those who participate in sports, and there are numerous sites at which these occur. Being familiar with them is important as chronic injuries can appear aggressive.

Shoulder

greater tuberosity - insertion of rotator cuff
lesser tuberosity - insertion of subscapularis (rare)

Elbow

medial epicondyle - apophyseal avulsion in children
- see also medial epicondylar fracture
coranoid process - insertion of capsule
biceps tubercle of the radius - long head of biceps

Avulsion injury is one of the skeletal “don’t touch” lesions.

~~-<li><a href="/articles/superior-peroneal-retinaculum-avulsion-fracture">Superior peroneal retinaculum avulsion fracture</a></li>~~
+<li><a href="/articles/superior-peroneal-retinaculum-avulsion-fracture">superior peroneal retinaculum avulsion fracture</a></li>

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Case 1 -: posterior tibial plateau avulsion

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Case 2 -: avulsion of tibial attachment of PCL

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Case 3 -: avulsion of 5th metatarsal

Image 1 MRI (T2*) ( update )

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Case 14: ~~Superior~~superior peroneal retinaculum avulsion fracture

Image 2 Annotated image ( update )

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Case 15: ischial tuberosity avulsion

Image 3 X-ray (Mortise) ( update )

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Case 4 -: avulsion at medial malleolus

Image 4 MRI (PD fat sat) ( update )

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Case 5 -: bilateral hamstring avulsion

Image 5 X-ray (Frontal) ( update )

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Case 6 -: avulsion fracture - right anterior superior iliac spine

Image 6 X-ray (Frontal) ( update )

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Case 7 -: iliac crest avulsion

Image 7 MRI (STIR) ( update )

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Case 8 -: hamstring avulsion

Image 8 X-ray (Frontal) ( update )

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Case 9 -: lesser trochanter avulsion

Image 9 X-ray (Lateral) ( update )

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Case 10 -: volar plate avulsion - middle phalanx

Image 10 MRI (T2) ( update )

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Case 11 -: greater tuberosity avulsion

Image 11 X-ray ( update )

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Case 12: lesser tuberosity avulsion

Image 12 X-ray (Lateral) ( update )

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~~Case~~Case 13: ~~Volar~~volar plate avulsion - middle phalanx

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