What is the resultant pressure on the calf band if the mechanical knee axis is located below the anatomical knee axis?

When the mechanical knee axis is positioned below the anatomical knee axis, it affects the distribution of forces and pressures on the calf band of the prosthetic limb. In this scenario, the alignment causes the knee to be flexed slightly more than it should be in a neutral position, causing the posterior aspect of the calf band to experience increased pressure.

As the knee flexes more than optimal, the weight of the body shifts, and the alignment results in a posterior shift of pressure. This aligns with biomechanical principles, where the force of gravity and the angle of the knee cause the calf band to receive greater pressure posteriorly due to the center of mass being shifted towards the back. Consequently, the resultant pressure is concentrated on the posterior aspect of the calf band. This understanding is crucial for properly fitting and adjusting prosthetics to ensure comfort and functional mobility for the user.