For Unlocked gait Deviations
GAIT DEVIATIONS AND ADJUSTMENTS:
Excessive Heel Rise:
During walking, first try adjusting the knee friction adjustment by turning it up to
slow knee flexion initiation during swing. It might be necessary to very slightly
increase knee extension assist spring tension by 1/8 turn increments. Increasing
extension assist spring tension alone, will not reduce excessive heel rise
tendencies.
Alignment of this knee is influenced by weight line of socket, and
interaction of foot (stance flexion is reactive by these 2 factors).
In most
cases, Stance Flexion might not be visibly noticeable, but the effect can be felt
by the wearer. 5 degrees of Stance Flexion will make a big difference. In some
cases, 12 degrees may be too excessive. Again, check your alignment with the
patient standing to see where the TA line falls versus the knee joint reference
point – the anterior proximal knee pivot.
Terminal Impact:
Terminal Impact can be reduced by increasing knee friction through the two knee
friction adjustment screws. Be sure to adjust both screws symmetrically. Also, it
may be necessary to reduce the extension assist spring tension. (Refer to
Section 8.3, 8.1)