What anatomical area is referred to as the popliteal fossa?

The popliteal fossa is specifically defined as the shallow, diamond-shaped space located at the back (posterior) of the knee joint. It is bordered by various structures including muscles and tendons that form its sides. This area is crucial for several functions, including the passage of nerves and blood vessels that supply the knee and lower leg, as well as providing a region for lymph nodes. The anatomical significance of the popliteal fossa is reflected in its role as a conduit for important vascular and neural structures, which are vital for the knee's function and the overall mobility of the leg. Understanding this area is important for orthotic fitters, as it influences the design and fitting of knee orthoses and other related devices.