what is a posterior horn medial meniscus tear
Longitudinal Tear of the Posterior Horn Medial Meniscus. The posterior horn of the medial meniscus is that portion of the medial meniscus in the back part of the knee. It varies from the main weightbearing portion of the meniscus up to where it attaches on the tibia at its lateral aspect, called the root attachment.ecause the posterior horn of the medial meniscus absorbs most of the weight of the medial compartment, it is also by far the most frequent area that a meniscus tear occurs in.