Benson explains, “a blood clot dislodges from somewhere in the body, then lodges at the pelvic end of the aorta where the blood vessels split to go down the legs (an area known as the saddle), resulting in lack of blood flow to the legs.” Always check with your veterinarian before changing your pet’s diet, medication, or. Why Are My Cats Back Legs Not Working Weak Wobbly And Stiff Cats suffering from epilepsy experience seizures, which not only cause them to temporarily lose control of their legs, but also display other symptoms. Cats back legs not working and cold . My two babies are in stages, it seems. Initially, some cats may need to be tube fed. Are your cat’ back legs collapsing? Sudden loss of use in their back legs could also be a sign of a thrombosis, caused when a blood clot is dislodged in a cat that has cardiomyopathy (heart disease). Lameness or limping in cats. A cat can suffer paralysis when it stops walking altogether. It scared the fool out of me,...