Evidence map›Paper›PMID 30589784›Full record

ArticlePlastic and reconstructive surgery2019

Toward the Bionic Face: A Novel Neuroprosthetic Device Paradigm for Facial Reanimation Consisting of Neural Blockade and Functional Electrical Stimulation.

Nate Jowett, Robert E Kearney, Christopher J Knox, Tessa A Hadlock

Abstract read
In one paragraph

Article in Plastic and reconstructive surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Review
  2. Human eyelid behavior is driven by segmental neural control of the orbicularis oculi.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Review
  4. Article
  5. Continual rehabilitation motivation of patients with postparalytic facial nerve syndrome.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2022
    Article
  6. Article
  7. Review
  8. Article
  9. Towards the clinical translation of optogenetic skeletal muscle stimulation.Pflugers Archiv : European journal of physiology · 2020
    Review
  10. Tolerability of facial electrostimulation in healthy adults and patients with facial synkinesis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2020
    Article
  11. Article
  12. 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

4 authors.

Nate JowettFrom the Massachusetts Eye and Ear Infirmary, Harvard Medical School, the Department of Otolaryngology, Surgical Photonics & Engineering Laboratory; and the Department of Biomedical Engineering, McGill University.
Robert E KearneyFrom the Massachusetts Eye and Ear Infirmary, Harvard Medical School, the Department of Otolaryngology, Surgical Photonics & Engineering Laboratory; and the Department of Biomedical Engineering, McGill University.
Christopher J KnoxFrom the Massachusetts Eye and Ear Infirmary, Harvard Medical School, the Department of Otolaryngology, Surgical Photonics & Engineering Laboratory; and the Department of Biomedical Engineering, McGill University.
Tessa A HadlockFrom the Massachusetts Eye and Ear Infirmary, Harvard Medical School, the Department of Otolaryngology, Surgical Photonics & Engineering Laboratory; and the Department of Biomedical Engineering, McGill University.

Funding

Surgical and Rehabilitative Management of Facial Nerve InjuryR01NS071067 · NINDS · MASSACHUSETTS EYE AND EAR INFIRMARY · PI HADLOCK, THERESA A · 2010 to 2020
$4.6M
NINDS NIH HHS R01 NS071067
6 · The paper itself

Abstract

backgroundFacial palsy is a devastating condition potentially amenable to rehabilitation by functional electrical stimulation. Herein, a novel paradigm for unilateral facial reanimation using an implantable neuroprosthetic device is proposed and its feasibility demonstrated in a live rodent model. The paradigm comprises use of healthy-side electromyographic activity as control inputs to a system whose outputs are neural stimuli to effect symmetric facial displacements. The vexing issue of suppressing undesirable activity resulting from aberrant neural regeneration (synkinesis) or nerve transfer procedures is addressed using proximal neural blockade.

methodsEpimysial and nerve cuff electrode arrays were implanted in the faces of Wistar rats. Stimuli were delivered to evoke blinks and whisks of various durations and amplitudes. The dynamic relation between electromyographic signals and facial displacements was modeled, and model predictions were compared against measured displacements. Optimal parameters to achieve facial nerve blockade by means of high-frequency alternating current were determined, and the safety of continuous delivery was assessed.

resultsElectrode implantation was well tolerated. Blinks and whisks of tunable amplitudes and durations were evoked by controlled variation of neural stimuli parameters. Facial displacements predicted from electromyographic input modelling matched those observed with a variance-accounted-for exceeding 96 percent. Effective and reversible facial nerve blockade in awake behaving animals was achieved, without detrimental effect noted from long-term continual use.

conclusionsProof-of-principle of rehabilitation of hemifacial palsy by means of a neuroprosthetic device has been demonstrated. The use of proximal neural blockade coupled with distal functional electrical stimulation may have relevance to rehabilitation of other peripheral motor nerve deficits.

Indexed as

AnimalsBionicsCombined Modality TherapyDisease Models, AnimalElectric Stimulation TherapyElectromyographyFacial ExpressionFacial ParalysisHumansNerve RegenerationNeurosurgical ProceduresProsthesis ImplantationRandom AllocationRatsRats, WistarSynkinesis

Identifiers

PMID30589784
PMCPMC6311722

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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.