<p>By Michelle Ponto / KHOU.com</p> <p>HOUSTON — Elena isn’t your average little girl. At 20 months, she’s already battled stage III cancer, and a spinal cord injury has left her in a wheelchair.</p> <p>Elena Porras with her mom, Juliet. <br /> Now, she’s getting ready to fight again. This time, she’s fighting for the chance to walk.</p> <p>“She’s paralyzed from the waist down, but from…</p>