Chondrocalcinosis, although very rare in young adults, can occur in some young patients. Although its presenting clinical history or radiographic findings may resemble those of an intraarticular loose body, chondrocalcinosis can occur in young athletes, possibly after repetitive microtrauma, and should be included in the differential diagnosis of calcified […]
Posterolateral corner injuries can be difficult to diagnose. The external rotation recurvatum test was one of the first clinical tests described to diagnose these injuries. Since its earliest description, it has been reported that a positive test result occurred with posterior translation of the proximal tibia with respect to the distal femur as the […]
To determine if untreated grade III injuries of the posterolateral structures contribute to increased force on an anterior cruciate ligament graft, we measured the force in the graft in cadaveric knees during joint loading after reconstruction with otherwise intact structures and in the same reconstructed knees after selected cutting of specific posterolateral knee structures.
Minnesota complex knee specialist Robert LaPrade MD, PhD. sits down to discuss how to read an MRI of an osteochondritis dissecans lesions, also known as an OCD lesion.
An osteochondritis dissecans lesion in the knee is a condition that is caused by a reduction of blood flow to the end of a bone within the […]
Minnesota knee surgeon, Dr. Robert LaPrade discusses how to read an MRI of a meniscal root tear. The meniscal roots are the attachment sites for the meniscus to the bone, and are important because if detached can cause instability to the meniscus. Meniscal root tears have only been identified within the last five to […]
Minnesota knee surgeon, Dr. Robert LaPrade details the specifics on how to read an MRI of a medial meniscus tear. There are different types of meniscus tears and a horizontal cleavage tear occurs within the fibers of the meniscus and splits the meniscus in the top and bottom pieces.
To begin, we start with a […]
Complex knee specialist Robert LaPrade MD, PhD. discusses how to read an MRI of a PLC injury. The posterolateral corner of the knee is comprised of three main stabilizers; the fibular collateral ligament, the popliteus tendon and the popliteofibular ligament.
We start off with a coronal view of a right knee. As we start to […]
Complex knee surgeon, Robert LaPrade MD, PhD. breaks down how to read a MRI of an MCL injury. This patient had a skiing injury on the medial side of the knee.
To begin, the coronal image is assessed. In this type of image the normal structures will be dark and the torn structures will be […]
Minnesota knee specialist Dr. Robert LaPrade breaks down the specific on how to read an MRI of a PCL tear. This specific case shows an isolated PCL tear.
Starting with sagittal images on the lateral side of the knee, you can see the menisci and closer to the midline you can see the anterior cruciate […]
In this video, Minnesota knee surgeon Dr. LaPrade identifies how to read an MRI of an ACL tear. He looks at the normal anatomy of the knee and what a torn ACL looks like and the secondary signs of an anterior cruciate ligament injury.
Starting with a sagittal view of the lateral aspect of the […]
