Can Knee Leg Brace Be Used For Polio Leg To Walk Comfortably?

Hi, may I answer your health queries right now ? Please type your query here..ii.iam polio patient i am 42 years old female,and i had undergone 2 major fracture surgeries for my polio affected leg and the plates were inserted in polio leg,now i am unable to walk freely and my query is can i use knee leg brace for my polio leg so that i can walk comfortable and another problem is my foot will not touch the ground whether the knee brace helps me to walk touching my foot