Thank you for your query at DoctorSpring.com
I have read your question with diligence .
Looking at your details if his condition is too severe due to disc prolapse then it will be best for him to have surgery.In good hands the surgery is not a serious or dangerous one,although the risks which are associated with routine surgery are also associated with this.I will advice you to go for surgery as it is only option present to give relief to him.
Hope this all will help you,
Feel free to discuss further.