The fascicles of the lateral meniscus: an anatomic-arthrographic correlation.

A model of the normal anatomy of the capsular attachments of the posterior horn of the lateral meniscus is developed based upon anatomic dissections. The term "fascicles" is applied to the delicate bands of connective tissue which join the posterior lateral meniscus to the joint capsule around the popliteal synovial sheath. The normal anatomic arrangement is illustrated with double contrast arthrograms. Abnormalities of the posterior horn of the lateral meniscus are then demonstrated, emphasizing disturbances of attachment around the popliteal sheath.