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  • Title: Fracture of the posterior aspect of the lateral tibial plateau: radiographic sign of anterior cruciate ligament tear.
    Author: Stallenberg B, Gevenois PA, Sintzoff SA, Matos C, Andrianne Y, Struyven J.
    Journal: Radiology; 1993 Jun; 187(3):821-5. PubMed ID: 8497638.
    Abstract:
    Plain radiographs obtained in 25 patients with acute anterior cruciate ligament (ACL) tears detected with magnetic resonance imaging were retrospectively evaluated to identify associated bone lesions. Fracture of the posterior part of the lateral tibial plateau (LTP) was seen in 11 patients, impacted fracture of the lateral femoral condyle (LFC) in two, lateral tibial rim fracture (Segond fracture) in three, and avulsion fracture of the tibial attachment of the ACL in two. The latter three fractures have been associated with an ACL tear. Conversely, fractures of the posterior part of the LTP have not been associated with ACL tear and are recognizable on plain radiographs. Impaction of the LFC on the LTP and avulsion of the posterior tibial capsular junction may account for the association of the fracture of the LTP with the acute ACL tear. This type of fracture represents the most frequent indirect sign of ACL tear seen on plain radiographs.
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