Minimally invasive lumbar fusion yielded better short-term satisfaction than open fusion
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For patients with degenerative spine disease, minimally invasive lumbar fusion was associated with increased odds of short-term satisfaction and lower Oswestry Disability Index compared with open fusion, according to published results.
James Mooney, MD, and colleagues retrospectively analyzed data for a cohort 1,483 patients with degenerative spine disease who underwent minimally invasive surgery (MIS) for lumbar spinal fusion and a matched cohort of 2,966 patients who underwent open lumbar fusion. Outcome measures included overall satisfaction, Oswestry Disability Index (ODI), back and leg pain, length of stay (LOS), operative time, reoperation and incidental durotomy rate, according to the study.
At 3 months, patients who underwent MIS fusion had higher odds of satisfaction compared with the open fusion cohort; however, no difference was found at 12 months, the researchers noted. Additionally, MIS fusion maintained a “small, yet consistent, superiority” in decreasing ODI and relieving back and leg pain, they added. Patients who underwent MIS fusion also had a shorter LOS and lower overall reoperation rates.
“Independent factors associated with increased satisfaction with MIS lumbar fusion, compared with open surgery, included age less than 58 years, first-time surgery, single-level surgery, lumbar stenosis and absence of spondylolisthesis,” the researchers wrote in the study. “This is one of the first studies to demonstrate a statistically significant higher odds of short-term (3-month) satisfaction with MIS lumbar fusion compared with open lumbar fusion, with similar overall satisfaction at 12 months,” they concluded.
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