What is a primary goal of sagittal alignment in transfemoral (TF) prosthetics?

The primary goal of sagittal alignment in transfemoral prosthetics is focused on achieving the quality of knee flexion during late stance. Proper sagittal alignment ensures that the forces acting upon the knee joint are optimal, allowing for smooth and controlled movements when the prosthetic leg is in the stance phase of gait.

When the alignment is ideal, it enables the individual to flex the knee effectively as they transition from stance to swing. This quality of knee flexion is crucial for a natural and efficient walking pattern, reducing the risk of gait abnormalities that could lead to additional energy expenditure or strain on other joints.

Achieving appropriate knee flexion in late stance promotes a more fluid and functional ambulation, which is particularly important for transfemoral amputees who may face challenges transitioning between different phases of gait due to their amputation. Proper sagittal alignment thus directly impacts mobility and overall quality of life for users of transfemoral prosthetics.