Evidence map›Paper›PMID 34938379›Full record

ArticlePain research & management

Characterisation of Phantom Limb Pain in Traumatic Lower-Limb Amputees.

André Tadeu Sugawara, Marcel Simis, Felipe Fregni, Linamara Rizzo Battistella

Open access · goldAbstract read
In one paragraph

Article in Pain research & management. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 9% 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, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Article
  6. Article
  7. Article
  8. Phantom Limb Pain Assessment Tools: A Literature Review Exploring Strengths and Limitations.Archives of rehabilitation research and clinical translation · 2025
    Review
  9. Article
  10. Article
  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

4 authors at 3 institutions in 2 countries.

André Tadeu SugawaraInstituto de Medicina Física e Reabilitação, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.ORCID https://orcid.org/0000-0003-2818-2101
Marcel SimisInstituto de Medicina Física e Reabilitação, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.ORCID https://orcid.org/0000-0003-1656-9659
Felipe FregniNeuromodulation Center, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA, USA.ORCID https://orcid.org/0000-0001-9359-8643
Linamara Rizzo BattistellaInstituto de Medicina Física e Reabilitação, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.ORCID https://orcid.org/0000-0001-5275-0733
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRHarvard University · USUniversidade de São Paulo · BR

Funding

Pragmatic Trial of Remote tDCS and Somatosensory Training for Phantom Limb Pain with Machine Learning to Predict Treatment ResponseR01HD082302 · NICHD · SPAULDING REHABILITATION HOSPITAL · PI Felipe Fregni · 2015 to 2026
$4.7M
NICHD NIH HHS R01 HD082302
6 · The paper itself

Abstract

introductionThere is no diagnosis for phantom limb pain (PLP), and its investigation is based on anamnesis, which is subject to several biases. Therefore, it is important to describe and standardize the diagnostic methodology for PLP.

objectiveTo characterise PLP and, secondarily, to determine predictors for its diagnosis.

resultsA total of 55 eligible patients participated in the study; most were male, young, above-knee amputees in the preprosthetic phase of the rehabilitation. The median PLP VAS was 60 (50-79.3) mm characterised by 13 (6-20) different descriptors in the same patient, which coexist, alternate, and add up to a frequency of 3.94 (2.5-4.38) times per week. The most frequent descriptor was movement of the phantom limb (70.91%). Tingling, numbness, flushing, itchiness, spasm, tremor, and throbbing are statistically significant PLP descriptor numbers per patient predicted by above-knee amputation, prosthetic phase, higher education level, and greater PLP intensity by VAS (

conclusionPLP is not a single symptom, but a set with different sensations and perceptions that need directed and guided anamnesis for proper diagnosis.

Indexed as

AmputeesPhantom LimbAdultAmputation, SurgicalCross-Sectional StudiesHumansLower ExtremityMaleMiddle Aged

Identifiers

PMID34938379
PMCPMC8687837
OpenAlexW4200175722

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.