Examining the value of lumbar spine surgery

Examining the value of lumbar spine surgery

Since the 1990s the rate of spinal fusion to treat lower back pain has been on the rise. A new prospective clinical study published in the journal Neurosurgery, the official journal of the Congress of Neurological Surgeons, found that lumbar fusions were three times more likely to be effective and obtain better patient outcomes, when guidelines for fusion were followed. The results suggest that when surgeons operate outside of what the evidence based literature suggests, patients may not have significant improvements in their quality of life and could have increased pain or other limitations.

The researchers assessed 325 lumbar fusion cases on whether they conformed to the North American Spine Societies (NASS) lumbar fusion guidelines. Assessments were done in a blinded fashion, and did not influence the decision of a patient’s surgical team. The researchers then followed the patients out for 6 months after surgery and had them fill out a validated survey tool (the Oswestry Disability Index—ODI), which assessed patient-reported outcomes measures (PROM). Rather than examining surgical success, the ODI examines patient centric outcomes including: pain, walking, lifting, sleep, social live and sex life.

Dr. Harrop and his colleagues found that of all of the variables they examined—concordance with NASS guidelines, type of surgeon, whether it was the first back surgery or a revision—following guidelines was most strongly associated with positive patient ODI outcomes. And that the patients meeting their criteria for a successful surgery were three times higher in these cases, highlighting how effective lumbar fusions can be for the right patient. “This study shows that the majority of patients did well with a lumbar fusion,” says Dr. Harrop, “But for the wrong patients, lumbar fusion can at best do nothing and at worst, create other problems.”

The evidence-based guidelines, published by NASS, describe nine criteria including things like trauma, deformity of the spine, certain kinds of axial back pain, tumor, or infection. However, there is still some debate in the field as to when patients fit the criteria.

“For example, after a trauma with a “broken” back, where we know the spine is unstable—we also know a fusion can help,” says Dr. Harrop. “That is a minority of the problems we see in practice. For our most common patient, one with degenerative diseases, spinal stability and instability has not been defined and understood as well as it should be. The NASS guidelines certainly help, but we need more research to understand what qualifies as normal range of movement, when is something pathologic and is immobilization through fusion the best option.”

The research was initiated and funded by Jefferson as part of an effort to improve patient care and outcomes through rigorous study. “What we really need is support from insurance companies and other agencies to fund and promote research on best practices and evidence-based care. Without that, we cannot debate value,” says Dr. Harrop


Source:  medicalxpress.com

Carole Uhlig

Carole L. Uhlig is from San Antonio and has always been interested in amazing new things and that led her to geekdom. Carole researches and reports on medical advances and robotics. She also enjoys her scooter and Youtube .

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