In fitting a knee orthosis, which aspect is crucial for ensuring proper alignment?

In the context of fitting a knee orthosis, ensuring proper alignment is fundamentally linked to the range of motion. The range of motion refers to the available motion of the knee joint and the ability of the orthosis to accommodate or control that motion effectively. Proper alignment is essential because it influences the mechanical efficiency of the knee during movement, affects load distribution across the joint, and can help prevent further injury or discomfort.

When the orthosis is aligned according to the patient's specific range of motion needs, it allows for the necessary freedom of movement while also providing the required support and stabilization. This is particularly important for conditions that involve weakness, joint instability, or the need for controlled motion through rehabilitation. Achieving the right alignment in conjunction with the patient's natural range of motion ensures that the orthosis functions optimally, enhancing both safety and comfort.

While the condition of ligaments, gait analysis, and skin condition are relevant factors in the overall fitting process, they serve more as considerations that influence the choice of orthosis or adjustments rather than direct determinants of alignment. Proper alignment fundamentally hinges on understanding the range of motion limitations and requirements of the knee joint as affected by the orthosis design.