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Greater BMI linked to risk of revision after single-level lumbar discectomy
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Results from this study demonstrated greater BMI independently correlated with the risk for revision surgery following minimally invasive lumbar discectomy.
Using their institution’s prospectively maintained surgical registry, researchers identified 226 patients who underwent single-level minimally invasive lumbar discectomy. Investigators categorized patients by BMI, with 56 patients grouped as normal weight; 80 patients noted as overweight; 66 patients were obese; and 24 patients were morbidly obese. Charlson Comorbidity Index (CCI) was used to determine any comorbidities, and investigators also assessed patients with the VAS at both preoperative and postoperative follow-ups.
A multivariate analysis model was used to test correlations between BMI and risk for revision surgery within 2 years of the initial surgery. The model was adjusted for patient age, sex, modified CCI, smoking status and operative level.
Results showed 23 patients needed revision surgery within 2 years postoperatively. Investigators noted the risk for revision surgery in normal-weight patients, overweight patients, obese patients and morbidly obese patients was 1.8%, 12.5%, 9.1% and 25%, respectively. According to results from the multivariate-adjusted analysis, BMI category independently correlated with the need for revision surgery. ‒ by Monica Jaramillo
Disclosures: Bohl reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.
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