RSPCA volunteers in Cornwall have spoken of how their "hearts broke" after they rescued a Chihuahua in a bad condition.The little pup named Jerry walked "like a spider", due to his knees fusing in the wrong places.Jerry was found alongside 17 other pets, including dogs, cats and exotic animals.He now needs corrective surgery so he can walk again.Jerry was found by the local inspectorate team in shocking conditions after his owner could no longer cope with him or the other animals.After seeing a specialist vet, it was determined that he needed surgery on both of his hind legs and months of physiotherapy to ensure that his surgery will be as successful as possible.