Lateral Meniscus Bucket Handle Tear Mri
Bucket handle meniscal tears are a type of displaced longitudinal meniscal tear where the inner part is displaced centrally.
Lateral meniscus bucket handle tear mri. The lateral meniscus is seen as a symmetric bow tie in the sagittal plane on at least one or two sections before it divides into two asymmetric triangles near the midline. A large bucket handle tear of the lateral meniscus is present with the bulk of the meniscus located medially adjacent to the cruciate ligaments. A bucket handle tear is a full thickness tear of the meniscus that most often happens in the inner portion of your medial meniscus. The bow tie rule 1 2 is a useful mr interpretation sign that should increase a reader s sensitivity for the detection of bucket handle tears.
A bucket handle tear of the meniscus occurs on the outer portion of the meniscus cartilage and causes a vertical slice through the meniscus. The attachments of the meniscus remain intact and the torn portion of the meniscus pulls into the center of the joint. Bucket hand tears can manifest as sensitive but not specific signs 1. It may have a relatively steep concavity in the posterior horn simulating a bucket handle tear.
They more commonly occur in the medial meniscus and are often associated with anterior cruciate ligament acl tears.