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Objective <p>This study aimed to compare the use of the endoscopic drill (ED) with the extra-endoscopic trephine (EET) in treating lumbar disc herniations with regard to efficiency, safety, and clinical outcomes.</p> Methods <p>From January 2022 and June 2023, 136 patients who had the single-level LDH and received the transforaminal endoscopic surgery were divided into two groups according to the foraminoplasty technique: the EET group (<i>n</i> = 69) and the ED group (<i>n</i> = 67). Surgery-related parameters, complications, Visual Analogue Scale (VAS, 0–10), and Oswestry Disability Index (ODI, 0–100%) were assessed and compared among two groups.</p> Results <p>The mean operation time and the foraminoplasty time of the EET group was significantly shorter than that of the ED group (<i>P</i> &lt; 0.05). Patients in ED group reported less back pain on the VAS during foraminoplasty than EET group. Although the total complication rate was similar between two groups, the incidence of neural irritation in ED group was significantly lower than that in the EET group. There were no significant differences in VAS or ODI scores at each follow-up visit between two groups.</p> Conclusions <p>The application of EET and ED were both effective for full-endoscopic foraminoplasty, and have achieved good clinical outcomes. Although the efficiency of EET is higher than that of ED, it faces some problems during use, such as a high risk of neural irritation, intense intraoperative pain, and the trephine displacement. The ED technique is safe and controllable, which can be used as an ideal method for supplementary foraminoplasty.</p>

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A comparative study of two full-endoscopic foraminoplasty techniques for lumbar disc herniation

  • 期刊论文

  • 发表日期：

    2025年1月15日

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  • Hengrui Chang,
  • Yuanqing Niu,
  • Yiwen Zhang,
  • Ao Yang,
  • Zhenguo Shang,
  • Di Zhang,
  • Jiaxin Xu

摘要

Objective

This study aimed to compare the use of the endoscopic drill (ED) with the extra-endoscopic trephine (EET) in treating lumbar disc herniations with regard to efficiency, safety, and clinical outcomes.

Methods

From January 2022 and June 2023, 136 patients who had the single-level LDH and received the transforaminal endoscopic surgery were divided into two groups according to the foraminoplasty technique: the EET group (n = 69) and the ED group (n = 67). Surgery-related parameters, complications, Visual Analogue Scale (VAS, 0–10), and Oswestry Disability Index (ODI, 0–100%) were assessed and compared among two groups.

Results

The mean operation time and the foraminoplasty time of the EET group was significantly shorter than that of the ED group (P < 0.05). Patients in ED group reported less back pain on the VAS during foraminoplasty than EET group. Although the total complication rate was similar between two groups, the incidence of neural irritation in ED group was significantly lower than that in the EET group. There were no significant differences in VAS or ODI scores at each follow-up visit between two groups.

Conclusions

The application of EET and ED were both effective for full-endoscopic foraminoplasty, and have achieved good clinical outcomes. Although the efficiency of EET is higher than that of ED, it faces some problems during use, such as a high risk of neural irritation, intense intraoperative pain, and the trephine displacement. The ED technique is safe and controllable, which can be used as an ideal method for supplementary foraminoplasty.