Evidence map›Paper›PMID 31721481›Full record

ArticleBrain and behavior2019

Contralateral seventh cervical nerve transfer can affect the pennation angle of the lower limb in spastic hemiplegia patients: An observational case series study.

Bao-Fu Yu, Li-Wen Chen, Yan-Qun Qiu, Jing Xu, Hua-Wei Yin, Qin-Ying Li, Wen-Dong Xu

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% of its field
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. [Research advances in nerve transfer for upper limb function restoration: applications from peripheral nerve injury to central nervous system injury].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
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  10. [Research progress of contralateral CZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021
    Review
  11. Article
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

7 authors at 3 institutions in 1 country.

Bao-Fu YuDepartment of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.ORCID 0000-0002-1952-0255
Li-Wen ChenDepartment of Hand and Upper Extremity Surgery, Jing'an District Center Hospital, Shanghai, China.
Yan-Qun QiuDepartment of Hand and Upper Extremity Surgery, Jing'an District Center Hospital, Shanghai, China.
Jing XuDepartment of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.
Hua-Wei YinDepartment of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.
Qin-Ying LiShanghai Clinical Medical Center for Limb Function Reconstruction, Shanghai, China.
Wen-Dong XuDepartment of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.
Fudan University · CNJingzhou Central Hospital · CNShanghai Clinical Research Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe previously reported transferring seventh cervical (C7) nerve from unaffected side to affected side in patients with spastic hemiplegia due to chronic cerebral injury, to improve function and reduce spasticity of paralyzed upper limb. In the clinics, some patients also reported changes of spasticity in their lower limb, which could not be detected by routine physical examinations. Pennation angle of muscle can indirectly reflect the condition of spasticity. The purpose of this study was to evaluate whether this upper limb procedure may affect spasticity of lower limb, using ultrasonography to detect changes of muscle pennation angle (PA).

methodsTwelve spastic hemiplegia patients due to cerebral injury including stroke, cerebral palsy, and traumatic brain injury, who underwent C7 nerve transfer procedure, participated in this study. B-mode ultrasonography was used to measure PA of the gastrocnemius medialis (GM) muscle at rest preoperatively and postoperatively. The plantar load distribution of the lower limbs was evaluated using a Zebris FDM platform preoperatively and postoperatively.

resultsThe PA of the GM was significantly smaller on the affected side than that of unaffected side before surgery. On the affected side, the postoperative PA was significantly larger than preoperative PA. On the unaffected side, the postoperative PA was not significantly different compared to preoperative PA. The postoperative plantar load distribution of the affected forefoot was significantly smaller than preoperative load distribution, which was consistent with ultrasonography results.

conclusionsThis study indicates that C7 nerve transfer surgery for improving upper limb function can also affect muscle properties of lower limb in spastic hemiplegia patients, which reveals a link between the upper and lower limbs. The interlimb interactions should be considered in rehabilitation physiotherapy, and the regular pattern and mechanism need to be further studied.

Indexed as

HemiplegiaMuscle SpasticityBrain InjuriesFemaleHumansLower ExtremityMaleMiddle AgedMuscle, SkeletalNerve TransferSpinal NervesTreatment OutcomeUltrasonographyUpper Extremitycervical nerve transferinterlimb interactionload distributionpennation anglespastic hemiplegiaultrasonography

Identifiers

PMID31721481
PMCPMC6908868
OpenAlexW2985510351

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.