Nov 16, 2024 · MRI. Imaging of anterior cruciate ligament tears should be divided into primary and secondary signs. Primary signs are those that pertain to the ligament itself. Secondary signs are those which are closely related to anterior cruciate ligament injuries. Primary signs. swelling. increased signal on T2 or fat-saturated PD. fiber discontinuity

Jan 9, 2025 · mri Unlike other ligaments or tendons, the anterior cruciate ligament normally has a heterogeneous appearance and the anteromedial and posterolateral bundles are defined by surrounding high-intensity structures 1 .

Sep 11, 2024 · MRI. These findings help differentiate between chronic and acute ACL tears 1: edematous soft tissue in the intercondylar notch is the characteristic feature of acute ACL tear, characterized by a homogeneous low signal on proton density and an inhomogeneous mildly high signal on T2-weighted images 3

Mar 13, 2023 · MRI allows the detection and evaluation of suspected anterior cruciate ligament graft tears, which can be best depicted in coronal and sagittal views. In addition, MRI can be used for the workup of concomitant chondral, meniscal and ligamentous injuries 4-9 .

Nov 7, 2022 · The pattern of bone bruise in knee injuries (a.k.a. bone contusion) can give clues for the mechanism and associated injuries. Radiographic features. Five classic bone contusion patterns have been described 1-4: pivot-shift injury. valgus stress to …

Diagnosis of ACL tear is made by detection of primary and secondary signs. Primary sign includes discontinuity and abnormal signal of ACL fibers and secondary signs include PCL buckling, anterior tibial translation, uncovered PHLM, empty notch sign, bone bruise and Segond fracture.

Dec 19, 2024 · Anterior cruciate ligament (ACL) avulsion fractures, also known as tibial eminence avulsion fractures, are a type of knee avulsion fracture. They typically involve separation of the tibial attachment of the ACL to variable degrees, although separation at the femoral attachment is …

Apr 20, 2024 · Segond fracture is an avulsion fracture of the knee that involves the lateral aspect of the tibial plateau and is very frequently (~75% of cases) associated with disruption of the anterior cruciate ligament (ACL). On the frontal knee radiograph, it may be referred to as the lateral capsular sign.

Jul 30, 2022 · The depth of the lateral femoral notch sign has been shown to correlate with anterior cruciate ligament (ACL) tear 2. A normal sulcus is located within 10 mm of Blumensaat's line on lateral projection 3 .

Aug 31, 2021 · The anterior tibial translocation sign or anterior drawer sign (a.k.a. anterior translation of tibia) is seen in cases of complete rupture of the anterior cruciate ligament and refers to anterior translocation (anterior tibial subluxation) of the tibia relative to the femur of >7 mm 1. It is measured on sagittal MRI sequences at the lateral ...