Frequently Asked Questions About the Temporary Evaluation

This page answers some common questions that patients have while preparing for the temporary evaluation procedure.

What is a temporary evaluation?
A temporary evaluation, also known as a trial, is typically a 3- to 7-day period that allows you to assess how well neurostimulation relieves your pain. For the evaluation, you will receive a temporary neurostimulation system, most likely in a doctor’s office or day surgery center. During the evaluation, your role will be to assess how neurostimulation feels at home throughout the day and during different activities.

I’ve heard that the evaluation procedure is similar to having an epidural. Is that true?
Yes. In an epidural procedure, a needle is inserted into an area along the spinal column called the epidural space. The needle delivers medication to the areas causing pain. In a temporary evaluation procedure, a needle is also inserted into the epidural space. However, instead of medication, thin wires called leads are inserted through the needle and positioned to deliver the stimulation sensation to the painful areas.

Does the temporary evaluation procedure hurt?
Most patients receive some medication to help with any discomfort and anxiety they may feel as the leads are inserted. As a result, most report very little discomfort, if any, during the procedure. However, many report some soreness afterward at the insertion site.

Is the temporary evaluation reversible?
Yes. One of the benefits of the temporary evaluation is that it is designed to be reversible. The removal of an evaluation system is simple and often takes less than a minute. It is frequently performed in a doctor’s office or day surgery center.

What are some of the risks associated with the procedure?
The placement of the leads is a surgical procedure that will expose you to risks, such as infection, swelling, bruising, and the loss of strength or use in an affected limb or muscle group. Be sure to talk to your doctor about the risks associated with neurostimulation.

How long does it take to recover from the evaluation procedure?
Although they must follow their doctor’s restrictions, most patients can resume their usual activities after the evaluation procedure. Patients may experience minor post-procedural discomfort; but for most patients, recovery time is minimal.

Keep in mind that during the evaluation, you will need to avoid bending, stretching, twisting, and lifting anything heavier than five pounds to help prevent complications and optimize your chances for a successful evaluation.

What can I do during the temporary evaluation? Will I be able to work?
The purpose of the evaluation is to determine your response to neurostimulation and to find out if it controls your pain throughout the day. You may be encouraged to try light activities, such as walking, to see if neurostimulation relieves your pain during those activities. Your doctor may advise you to avoid strenuous activities during your evaluation. If your job is strenuous, you may or may not be able to return to work. Your doctor will determine what is best for you.

What happens after the temporary evaluation?
If you and your doctor agree that neurostimulation is right for you, you will be scheduled to have a neurostimulation system implanted. While many doctors perform this procedure themselves, others refer their patients to a surgeon. In either case, your implant procedure will likely occur within a few weeks.

Will my insurance cover the temporary evaluation and implanted system?
The evaluation procedure and implanted system are typically covered by most major insurance plans, Medicare, and workers’ compensation programs. You will need to work with your doctor’s office and insurance company to determine your coverage.

Why is a pre-surgical psychological evaluation needed?
Most insurance carriers and Medicare require psychological evaluations to address issues that could affect your outcome during the evaluation. Some possible issues, such as anxiety and depression, may be addressed and treated by a psychologist before the procedure.

Will I have to stop taking my medication during the evaluation?
While many doctors allow their patients take medications during the evaluation, every doctor has a different approach. Talk to your doctor about taking medication during your evaluation.