This could be metabolic bone disease and he may need exposure to sunlight and some diet changes to save him.
http://www.greenigsociety.org/mbd.htm
Rear limb paralysis may also result from mineral (especially calcium) deficiencies that cause fibrous osteodystrophy of the spinal column. Injectable calcium is also necessary in the therapy of this problem.
You really need to see a herp vet with this little guy to see if he needs injections or oral supplements etc.
Another possible dietary issue is a disease resulting from vitamin B1 deficiency which causes paralysis of the rear legs and tail. This problem is treated with injectable B vitamins and dietary improvement.
To find a herp vet near you check here if you don't already have one lined up to use
www.herpvetconnection.com
or
www.anapsid.org/vets/
Hope this helps you!
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