A nice and simple article by Dr. Robert F. LaPrade on this very rare pathology.
Injury to the proximal tibiofibular joint is rather rare, but it can be debilitating in patients who have symptoms. The usual mechanism is having a patient fall on a plantar-flexed ankle, with the stress being brought through the fibula, such that the proximal fibula will sublux out of place over the lateral aspect of the knee joint. In other circumstances, there may be a more obvious injury where one has a significant trauma or motor vehicle accident where the proximal tibiofibular joint is disrupted.
In most circumstances, it is the posterior proximal tibiofibular joint ligament which is disrupted. This results in the fibula rotating away from the tibia during deep squatting. This can result in a feeling of instability, a visible bony deformity, and concurrent irritation of the common peroneal nerve. This is because the common peroneal neve crosses the lateral aspect of the fibular neck within 2-3 cm of the lateral aspect of the fibular head.
Selected as "one of the Best Doctors in America", Dr. Robert F. LaPrade is a complex orthopaedic (orthopedic) knee surgeon at The Steadman Clinic in Vail, CO specializing in complex knee injuries. He also serves as Chief Medical Officer, Deputy Director of the Sports Medicine Fellowship Program and Director of the International Research Scholar Program at the Steadman Philippon Research Institute.
No comments:
Post a Comment