Imagine you’re the parent of a special-needs child - one with a spinal-cord injury or cerebral palsy - and you’re told that the best therapy for your child is to get on a horse. Some parents would understandably recoil from such a suggestion, but horseback riding has become an accepted and encouraged therapy, according to Debby Sabin Kanzer of Lincoln, founder of the Lovelane special-needs horseback riding program in Weston and Lincoln…