Recovery from spinal fusion surgery takes a minimum of three to four months and may continue more than a year after surgery for complete bone healing, according to MedicineNet. Young, healthy patients with sedentary jobs should expect to be out of work for about a month to six weeks.
Older individuals who undergo extensive surgical procedures may require four to six months recovery time before returning to work. A patient's pre-surgery condition affects the length of the recovery, notes MedicineNet. Patients receive instructions to help protect their backs and facilitate healing, especially during the first two weeks after surgery. Recommendations include taking short walks, avoiding strenuous housework and not driving.