My wife who is 38 she had polio attack in her childhood (at the age of 3)... bcoz of that her left leg became paralyzed below knee... she is able to walk with the help of caliper & crutches. She could have to walk by supporting hand on her left leg without caliper & crutches. Before 3 years she got pain on her right knee & now she can't walk by hand support, so she used to what I say, crawling. Then also she can do all jobs independently as normal persons can do. What we'll do to walk by supporting hand on knee as before she was walking. Can she walk by hand support as before.....Waiting for your valuable reply soon.......