Please help any information would be helpful.

In 2007 my father was diagnosed with cancer and treated at the U of MD he had 5 weeks of radiation 5 days each week and one day each week chemo. Now in 2009 he began to have issues urinating and joint problems in December of 2009 Dad fell and rushed to the hospital where after weeks of test it was found that dad has 'Radiation Myelitis'. Is there any cure for this? Please any info would help us.