You did everything right. You followed your doctors' recommendations, went through the surgery, endured the recovery, and waited for the relief that was supposed to come. Then it didn't. Or it came partially, then faded. Or the pain moved to a different place entirely. This experience has a clinical name: failed back surgery syndrome. And it doesn't end your VA claim. In many cases, it opens a new chapter of it.
Failed back surgery syndrome (FBSS) is a clinical term for persistent or recurring back or leg pain following spinal surgery, despite a technically successful procedure. It's not a surgical error designation. It reflects the reality that spinal surgery outcomes are variable, particularly for conditions like disc herniation, stenosis, and degenerative disc disease.
Common presentations include:
A veteran who had surgery for a service-connected disc herniation and continues to have significant pain and limitation is not in a different category from one who never had surgery. The underlying condition and its functional consequences are still rateable.
If surgery was performed less than two years before the rating decision, the VA should consider whether to assign a temporary "total" evaluation during the period of surgical recovery under 38 CFR 4.30. This provides 100% rating for a minimum of one month following major surgery, with a mandatory reassessment at the appropriate post-operative interval.
Veterans who had spinal surgery while their claim was pending should flag this to ensure the temporary total evaluation is applied.
Once the surgical recovery period is complete, the back is rated on current residuals under the standard range of motion criteria. The fact that surgery was performed doesn't reduce the rating; it's what your functional level looks like now that matters.
Post-surgical ratings should capture:
Adjacent segment disease refers to accelerated degenerative change at the spinal levels immediately above or below a fusion. The fused segment transfers stress to the adjacent discs, which then degenerate faster than they otherwise would.
If a veteran's service-connected back surgery caused or accelerated adjacent segment disease, that new or worsened disc pathology can be claimed as secondary to the service-connected surgical treatment. The legal basis is 38 CFR 3.310, which covers conditions caused or aggravated by service-connected disabilities.
The nexus letter in a post-surgical case serves multiple purposes:
The second point deserves elaboration. VA examiners sometimes suggest that a veteran would have needed surgery regardless of service connection, and therefore the post-surgical complications can't be attributed to service. This reasoning is legally flawed: if the service-connected condition was the condition that required surgery, the surgical complications and residuals are secondary to that service-connected condition, regardless of whether someone else might have eventually needed the same surgery.
When a fusion has been performed, the rating logic changes slightly. The fused segment is essentially ankylosed by design. The rating for ankylosis depends on the position of fusion (favorable vs. unfavorable) and how many spinal segments are involved.
A multi-level fusion with residual pain and functional limitation can reach significantly higher ratings than an unfused degenerative condition, because the ankylosis criteria are applied. Under DC 5241 (spinal fusion), the examiner must evaluate the position of fusion and the functional consequences.
For foundational context on back ratings, see Back Pain VA Rating: Schedule for Rating Disabilities Explained. For veterans with back pain who haven't had surgery but are developing progressive symptoms, Spinal Stenosis VA Claims and Aging addresses the progression argument.
If your back surgery didn't give you the relief you hoped for, your claim story isn't over. Flat Rate Nexus provides physician-signed nexus letters for post-surgical back conditions, including adjacent segment disease and FBSS. Educational tools are at flatratenexus.com/back-pain.html.
Thinking about your own claim? Every nexus letter we write goes through a full physician record review, cites peer-reviewed research, and is built around the actual evidence in your case.
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