Knee injuries
Here is Daryn Cresswell attempting to relocate his dislocated patella. Which of the following manoeuvres would not have made the relocation easier.
Extending the knee makes the relocation a great deal easier.
This patient stepped in a hole and hyperextended his knee. What does the photo most likely show?
The dislocation is named from the distal bones (tibia and fibula) which are posterior to the femur. This injury has a high rate of popliteal artery injury.
What is this test showing?
It is an anterior drawer test illustrating a very soft endpoint when the tibia is pulled anterior to the femur. This is because the ACL (Anterior cruciate ligament) is ruptured. A normal ACL gives a very defined end point.
The video shows an aspiration of a knee haemarthrosis. Which of the following statements is false?
Although not always an absolute contraindication if the patient is on anticoagulants then reversal would be recommended before aspiration.
Which piece of trivia about knees is incorrect?
Bit of a trick question. Flamingos "knees" are in fact their ankle joints. Their real knee joints are hidden under their feathers. And yes grasshoppers do have tiny functioning ears on their front feet--and no one knows why!
The video shows the knee in extension and 20 degrees flexion being but under a "varus" strain. What is it showing?
The varus strain is where the tibia goes in towards the body "valgus" away from the body. I always used to remember the difference because of the l in valgus = lateral = away from the body ---mmm might only work for me.
What does this test show?
It is a bit difficult to tell sometimes from an anterior cruciate rupture. But if you look closely you can see there is a solid stop anteriorly and a sag posteriorly.
A man twisted his knee and has tenderness over the joint line on the inside of his knee. The MRI supports what diagnosis?
Tenderness over the joint line medially really seals the diagnosis clinically. The MRI confirms it. As you could imagine there are lots of different types of tears like longitudinal, radial, root---this is a bucket handle tear.
This man was struck on the anteromedial aspect of his knee. He presents with a very tender and swollen knee. The arrow in the x-ray is pointing to an "arcuate" sign. What does this mean?
The arcuate ligament complex attaches to the head of the fibula, the biceps femoris tendon or both. That avulsion fracture needs to be diagnosed early and an MRI organised to look at the ACL.
The following is the English word "knee" in different languages. Pick which one is a lie!
The e in terd has an acute so I am not sure about the pronounciation---apologies to my Hungarian friends. Welsh is actually pen-glin.