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Clinical Effectiveness of Percutaneous Epidural Neuroplasty According to the Type of Single-Level Lumbar Disc Herniation : A 12-Month Follow-Up Study

Journal of Korean Neurosurgical Society 2019년 62권 6호 p.681 ~ 690
조평구, Ji Gyu-Yeul, Yoon Young-Sul, 신동아,
소속 상세정보
조평구 ( Cho Pyung-Goo ) - Ajou University College of Medicine Department of Neurosurgery
 ( Ji Gyu-Yeul ) - Cham Teun Teun Research Institute Department of Neurosurgery
 ( Yoon Young-Sul ) - Yonsei University College of Medicine Department of Neurosurgery
신동아 ( Shin Dong-Ah ) - Yonsei University College of Medicine Department of Neurosurgery

Abstract


Objective: To determine whether the outcomes of percutaneous epidural neuroplasty (PEN) are influenced by the type of lumbar disc herniation (LDH) and evaluate the effectiveness of PEN in patients with single-level LDH.

Methods: This study included 430 consecutive patients with single-level LDH who underwent PEN. Before treatment, the LDH type was categorized as bulging, protrusion, extrusion, and sequestration, while Pfirrmann grades were assigned according to imaging findings. Visual analog scale (VAS) scores for back and leg pain and success rates (Odom’s criteria) were assessed at 1, 3, 6, and 12 months after treatment.

Results: The mean preoperative VAS scores for back and leg pain were 6.90 and 4.23, respectively; these decreased after PEN as follows : 2.25 and 1.45, respectively, at 1 month; 2.61 and 1.68, respectively, at 3 months; 2.28 and 1.48, respectively, at 6 months; and 2.88 and 1.48, respectively, at 12 months (p<0.001). The decrease in VAS scores for leg pain was significantly greater in the extrusion and sequestration groups than in the other two groups (p<0.05); there were no other significant differences among groups. More than 70% patients exhibited good or excellent 12-month outcomes according to Odom’s criteria. Subsequent surgery was required for 59 patients (13.7%), with a significantly higher rate in the extrusion (25.0%) and sequestration (30.0%) groups than in the bulging (7.3%) and protrusion (13.8%) groups (p<0.05). Nevertheless, subsequent surgery was not required for >70% patients with extrusion or sequestration. Patients with Pfirrmann grades 1-3 (14.0-21.5%) showed a significantly higher rate of subsequent surgery than those with Pfirrmann grade 0 (4.9%; p<0.05).

Conclusion: Our findings suggest that PEN is an effective treatment for back and leg pain caused by single-level LDH, with the outcomes remaining unaffected by the LDH type.

키워드

Low back pain; Herniated disc; Percutaneous epidural neuroplasty; Percutaneous adhesiolysis; Treatment outcome

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