Prognostic Factors for Successful Percutaneous Disc Decompression Using the Navigable Device L’DISQ in Patients with Lumbar Discogenic Pain
Abstract The navigable percutaneous disc decompression (PDD) device L’DISQ is an effective and safe option for the treatment of lumbar discogenic pain. This retrospective study aimed to evaluate the prognostic factors associated with the successful outcome of PDD using the L’DISQ for treating lumbar discogenic pain by following up patients before and 1, 2, 3, and 6 months after the procedure. A successful outcome was defined as a ≥ 50% reduction in the numeric rating scale scores for pain and a ≥ 40% reduction in the Oswestry disability index scores at 6 months after the procedure. Clinical parameters and patient demographics, including pain duration, history of surgery, number of treatment levels, and radiographic findings of lumbar magnetic resonance imaging, were also examined. Of the 106 patients included, 80 (75.5%) had successful outcomes at 6 months. Multivariable logistic regression analysis revealed that the presence of high-intensity zones (HIZs) (P = 0.016) was an independent positive predictor of successful PDD outcomes; conversely, migration of the herniated disc (P = 0.017) and bilaterally herniated discs (P = 0.001) were negative predictors. Therefore, the presence of HIZs, absence of migration of herniated discs, and presence of unilaterally herniated discs are positive predictors of successful outcomes.