(image from IDR+ web site)
Here is what IDR says about him:
Humpty Dumpty was hit by a car, and our vet was able to put him back together again as best as he could. He was initially hospitalized for a month when he first arrived to assure he received the best care. His pelvis was broken, and he never regained the use of is right leg, so it was amputated. His left leg is healed, but he can only do very few steps so he must be adopted to a ranch style home. Humpty has had a long road to recovery, but he is ready and waiting patiently in his chair for his forever home. Humpty does fine with other dogs after a slow introduction, but no cats for him. He also won’t be placed with young children due to his disability. He is housebroken and doesn’t chew things in his area. He is a typical Dobe who sucks his flank, and he loves to chew on bones.
(picture from IDR+ web site)
If you're interested in adopting Humpty Dumpty, you can email info AT ildoberescue DOT org. You can read about their adoption process on this page, which also links to an article on their page they've entitled "The Joys of Dog Training", which is worth a read!