Managing arthritis with bio mechanical approach to knee joint in that which we can reduces bio mechanical stress over knee joint.
Mostly medial condyle of knee is more involved then lateral condyle. To reduces stress over medial condyle we can use lateral heel wedge. That will change weight transfer will shift lateral side so over stress reduces on medial aspect of knee and Patient will feel pain reduced.
Once pain reduces then patient is able to walk more comfortably than previously.