Back surgery success rate range from 60-80%. This is not bad, however the failure rates are the problem.
In addition to the quality of surgeon, the surgery type and other factors, your back pain recovery and success rate can be determined by your health as well. These health factors can negatively impact your back surgery recovery:
Smoking status
Obesity
Age
Blood pressure issues
Preexisting depression
Preexisting poor psychosocial well-being