$tibial avulsion fracture$

$tibial avulsion fracture$

On MR small avulsion fractures can easily be missed, as the avulsed cortical fragment is often poorly visualized, and the bone marrow edema is absent at the site of injury 5. Subacute: fracture healing results in a mixed lytic/sclerotic appearanceĬhronic: sclerosis and osseous hypertrophy Appearances will vary depending on classification 4:Īcute: avulsed bone fragment with donor site and typically associated soft tissue swelling / joint effusion The avulsed bone fragment is typically displaced in the direction of the tendon, ligament or joint capsule which is attached to it 5. CT and/or MRI may be required for detection and further characterization. Many avulsion fractures are apparent of plain radiographs. Superior peroneal retinaculum avulsion fracture Medial aspect of femoral condyle: medial collateral ligamentĬalcaneal tuberosity avulsion fracture: insertion of calcaneal tendonĪnterior process of the calcaneum: insertion of bifurcate ligamentĭorsolateral process of the calcaneum: insertion of extensor digitorum brevis muscleĪvulsion fracture 5 th metatarsal styloid: insertion of peroneus brevis tendon Head of fibula: lateral collateral ligament and biceps femoris Tibial tuberosity avulsion fracture: tibial tuberosity/patellar tendon See also: Sinding-Larsen-Johansson syndrome and Jumper's knee Inferior pole of patella: patellar tendon Posterior tibial plateau/ intercondylar area: posterior cruciate ligament Intercondylar area: anterior cruciate ligament Ischial tuberosity avulsion: hamstring musclesīody and inferior ramus of pubic bone: thigh adductors and gracilis Iliac crest avulsion: anterior abdominal wall musclesĪnterior superior iliac spine (ASIS) avulsion: tensor fascia lata and sartoriusĪnterior inferior iliac spine (AIIS) avulsion: straight head of rectus femoris Medial epicondyle: apophyseal avulsion in childrenīase of middle phalanx: volar plate avulsion injury Lesser tuberosity: insertion of subscapularis (rare) Greater tuberosity: insertion of rotator cuff

$tibial avulsion fracture$

Subacute and chronic avulsion injuries can be due to delayed presentation of an acute injury or secondary to repetitive use / overuse injuries 4. In acute avulsion fractures, there is usually a clear preceding traumatic incident. PathologyĪvulsion fractures can be classified as acute, subacute or chronic. Avulsion injuries are common among those who participate in sports, in particular adolescents.

$tibial avulsion fracture$

Tibial avulsion fracture