Abstract
Initial imaging evaluation for a variety of knee pathologies often begins with a radiographic
series. Depending on the specific indication, this will include at least two different
projections of the knee. In most cases, these are the anteroposterior and lateral
radiographs of the affected knee, and sometimes with the contralateral knee for comparison.
Typically, knee pathologies visible on lateral view can also be appreciated on the
anteroposterior view. However, several pathologic processes occur in anatomic locations
typically obscured on other projections because of superimposed osseous structures.
Examples of these pathologies include injuries involving the quadriceps or patellar
tendons, avulsion fractures involving anterior or posterior structures, and many soft-tissue
injuries. Knowledge of the relevant anatomy and typical pathologies typically visualized
on the lateral radiograph of the knee is imperative to avoid overlooking these disease
processes.
Keywords
lateral knee radiograph - lateral knee anatomy - extensor mechanism injury - avulsion
injuries of the knee - fractures of the knee
