Evidence map›Paper›PMID 32367234›Full record

ArticleInternational orthopaedics2020

Is selective nerve root block necessary for learning percutaneous endoscopic lumbar discectomy: a comparative study using a cumulative summation test for learning curve.

Bin Sun, Huiqiao Wu, Zeng Xu, Jiajia Lu, Yunhao Wang, Ke Zhang, Xiaoxiang Gao, Xiaolong Shen, Xiao-Dong Wu, Ying Zhang and 3 more

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Article in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–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

14 citing papers in PubMed.

  1. Trial
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  7. Percutaneous endoscopic transforaminal discectomy and unilateral biportal endoscopic discectomy for lumbar disc herniation: a comparative analysis of learning curves.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 · 2024
    Article
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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

13 authors.

Bin SunDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Huiqiao WuDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Zeng XuDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Jiajia LuDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Yunhao WangDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Ke ZhangDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Xiaoxiang GaoDepartment of Orthopaedics, The 455th Hospital of Chinese People's Liberation Army, Shanghai, China.
Xiaolong ShenDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Xiao-Dong WuDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Ying ZhangDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.
Xin GuDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China. guxin2004ty@163.com.
Changgui ShiDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China. charlieshi@smmu.edu.cn.
Wen YuanDepartment of Orthopaedics, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to investigate the effect of lumbar spine selective nerve root block (SNRB) experience on the learning efficiency of percutaneous endoscopic lumbar discectomy (PELD) for junior trainees.

methodsA total of 480 patients undergoing single-level PELD performed by eight junior trainees were included. The trainees were divided into two groups based on whether they had previous SNRB experience (group A, yes; group B, no). Surgical proficiency was defined as total operation time less than 65 minutes and cumulative radiation exposure time no more than 40 seconds. The learning curve was analyzed by cumulative summation (CUSUM) test. Clinical evaluations included Macnab classification, visual analog scale (VAS)-low back score, VAS-leg score, and Oswestry Disability Index (ODI). Follow-up information at 12 months was also obtained.

resultsIntegral number of cases before achieving an acceptable surgical level in group A (47.75 ± 2.50 cases) was significantly smaller than that in group B (56.50 ± 1.29 cases, p < 0.05), along with less accumulated failure (18.75 ± 0.96 cases vs. 25.50 ± 1.75 cases, p < 0.05). The two groups were comparable in clinical outcomes. Forty-seven cases of complications were observed, with 17 in group A and 30 in group B (p < 0.05).

conclusionPrevious experience of SNRB improved the performance of PELD with shorter operation time and less radiation exposure. SNRB practice may reduce the complication rate without a significant effect on the recurrence of symptoms and reoperation.

Indexed as

Diskectomy, PercutaneousIntervertebral Disc DisplacementDiskectomyEndoscopyHumansLearning CurveLumbar VertebraeRetrospective StudiesTreatment OutcomeCumulative summationLearning curveLumbar disc herniationPercutaneous endoscopic lumbar discectomySelective nerve root block

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Registered trials

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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.