Evidence map›Paper›PMID 40515760›Full record

ArticleInternational orthopaedics2025

Risk factors for recurrent lumbar disc herniation after unilateral biportal endoscopy: a retrospective study.

Yaoshen Zhang, Zihao Ding, Jie Wang, Li Guan, Yuzeng Liu, Yong Hai

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Article in International orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Optimizing the mathematical model and technical standards for unilateral biportal endoscopic spinal surgery through machine learning-based video analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Yaoshen Zhang *Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Zihao Ding *Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Jie Wang *Department of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Li GuanDepartment of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Yuzeng LiuDepartment of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. beijingspine2010@163.com.
Yong HaiDepartment of Orthopedic Surgery, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China. yong.hai@ccmu.edu.cn.

Funding

Beijing Chao-Yang Hospital, Capital Medical University CYFH202218
6 · The paper itself

Abstract

purposeUnilateral biportal endoscopy (UBE) is a predominantly minimally invasive surgical technique for addressing LDH. Nonetheless, recurrent lumbar disc herniation (rLDH) remains the predominant reason for reoperation following UBE. This retrospective study examined the risk factors and reoperation rates for rLDH following UBE. This study aimed to examine the risk factors associated with rLDH and the reoperation rate after single-level UBE.

methodsWe retrospectively analyzed 205 patients who underwent UBE for single-level LDH from 2019 to 2023 to determine reoperation causes and related risk variables. Reoperation was characterized as the postoperative radiological evidence of persistent symptomatic disc herniation at the same level, necessitating further surgical intervention. We gathered radiographic and demographic parameters preoperatively and postoperatively. Patients with recurrent LDH had additional evaluation during recurrence and revision operations.

resultsOf the 205 patients, 21 (10.2%) required further rLDH revision surgery. The multivariate analysis indicated that obesity and elevated fasting blood glucose (FBG) levels were independent risk variables with strong predictive value for reoperation after controlling for other potential risk factors. Based on the receiver operating characteristic curve analysis, the cutoff points for UBE were body mass index (BMI) = 25.775 kg/m

conclusionThis study identified obesity (BMI > 25.775 kg/m²) and elevated FBG levels (> 5.155 mmol/L) as independent risk factors for UBE reoperation. Hence, we recommend longer rehabilitation interventions, such as wearing a suitable brace and strengthening the paraspinal muscles, for patients with obesity and high FBG who undergo UBE.

Indexed as

EndoscopyIntervertebral Disc DisplacementLumbar VertebraeAdultAgedBlood GlucoseBody Mass IndexFemaleHumansMaleMiddle AgedObesityRecurrenceReoperationRetrospective StudiesRisk FactorsBlood Glucose

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.