Answer :
Final answer:
A toe-to-heel rocker bottom orthosis is recommended post ankle fusion as it compensates for the lack of ankle movement, helping to facilitate a more natural gait pattern during walking and ensuring a smoother transition of weight from heel to toe. Therefore, the correct option is 2) Toe-to-heel rocker bottom.
Explanation:
Post ankle fusion, I would recommend a toe-to-heel rocker bottom orthosis. This type of orthosis provides a sole that is curved between the toe and the heel, which helps to simulate the natural motion of the foot during walking. It compensates for the lack of ankle movement post-fusion by facilitating a more natural gait pattern and assisting in the transfer of weight from the heel to the toes during the stride.
It's necessary to ensure proper fitting of the orthosis to maximize comfort and function. Close monitoring by a healthcare professional is essential to make adaptations as the patient's needs change during recovery. A side-to-side rocker bottom is less common after ankle fusion, as it provides motion perpendicular to the natural flexion-extension plane of the ankle. Similarly, a 2/3 length orthosis can provide support but does not address gait mechanics as effectively as a toe-to-heel rocker sole. Finally, a forefoot rocker mainly enhances push-off during the late stance phase of gait, which may not be as crucial right after an ankle fusion.
