You are right in saying " As yet no proven treatment is available for spinal cord atrophy
. There is potential for treatmement for this condition with the use of stem cells". You are 11 year old. You do not have to be rich to be taken of. Prevent bed sores, prevent infection in short, have someone to look after your nursing needs including nutrition and prevent complications. It is matter of time when somform of affordable or sponsored by research groups of Medical Colleges / Medical Institutes for research purposes to begin with is available. You have to maintain yourself and keep your will power up. Positive thinking is the key. Find a vocation and thank God that your problem starts below ribs and both of your arms are functional. A specially abled person you can afford to wait till a time comes when treatment is available. Keep in touch with neurology departments of nearby medical colleges and with internet to connect you to research group. Do ask around your neurologists about genuineness of research group, some day soon, you will find a way out of this condition you find yourself in. You have everything to gain and nothing more to loose.
Dr Anil Grover