Anatomical variations of the pyramidalis muscle: a systematic review and meta-analysis.

Purpose: To provide a comprehensive evidence-based assessment of the anatomical characteristics of the pyramidalis muscle (PM). Materials and methods: A thorough systematic search of the literature through August 31st 2020 was conducted on major electronic databases PubMed, Scopus and Web of Science...

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Publicado en:Surgical & Radiologic Anatomy Vol. 43; no. 4; pp. 595 - 606
Autores principales: Cirocchi, Roberto, Cheruiyot, Isaac, Henry, Brandon Michael, Artico, Marco, Gioia, Sara, Palumbo, Piergaspare, Kipkorir, Vincent, D'Andrea, Vito, Randolph, Justus
Formato: Journal Article
Publicado: Springer Nature Apr2021
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Apr2021
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s00276-020-02622-4
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        atl: Anatomical variations of the pyramidalis muscle: a systematic review and meta-analysis.
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          Cirocchi, Roberto
          Cheruiyot, Isaac
          Henry, Brandon Michael
          Artico, Marco
          Gioia, Sara
          Palumbo, Piergaspare
          Kipkorir, Vincent
          D'Andrea, Vito
          Randolph, Justus
        affil: Department of Surgical Science, University of Perugia, Piazza dell'Universitá, 1, 06123, Perugia, PG, Italy
      sug:
      ab: Purpose: To provide a comprehensive evidence-based assessment of the anatomical characteristics of the pyramidalis muscle (PM). Materials and methods: A thorough systematic search of the literature through August 31st 2020 was conducted on major electronic databases PubMed, Scopus and Web of Science (WOS) to identify studies eligible for inclusion. Data were extracted and pooled into a meta-analysis using MetaFor package in R and MetaXL. A random-effects model was applied. The primary outcome of interest was the prevalence of PM. The secondary outcomes were the dimensions (length and width) of the PM. Results: A total of 11 studies (n = 787 patients; 1548 sides) were included in the meta-analysis. The multinomial pooled prevalence estimate (PPE) for a bilateral absence of the PM was 11.3% (95% CI [7.2%, 16.2%], 82.3% (95% CI [76.2%, 87.6%]) for a bilateral presence, and 6.3% (95% CI [3.3%, 10.2%]) for a unilateral presence. Of four studies (n = 37 patients) that reported the side of a unilateral presence, the PPE of a unilateral right-side presence was 42.2% (95% CI [23.0%, 62.3%]) compared to 57.8% for a unilateral left-side presence (95% CI [37.7%, 77.0%]). The mean length of the PM displayed high levels of heterogeneity, ranging from 3.12 to 12.50 cm. Conclusion: The pyramidalis muscle is a rather constant anatomical structure being present in approximately 90% of individuals.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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