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CC BY-NC-ND 4.0 · Rev Bras Ortop (Sao Paulo) 2023; 58(06): e891-e895
DOI: 10.1055/s-0043-1768617
Artigo Original
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Prevalence of Absence of Palmaris Longus Tendon in a Population Sample from a Multiethnic Brazilian City[*]

Article in several languages: português | English
Danilo Pizzo Kitagaki 
1   Ortopedista e Traumatologista, Unidade de Cirurgia da Mão, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
,
Carlos Henrique Fernandes 
1   Ortopedista e Traumatologista, Unidade de Cirurgia da Mão, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
,
Lia Miyamoto Meirelles 
2   Fisioterapeuta, Unidade de Cirurgia da Mão, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
,
Luis Renato Nakachima 
1   Ortopedista e Traumatologista, Unidade de Cirurgia da Mão, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
,
João Baptista Gomes dos Santos 
1   Ortopedista e Traumatologista, Unidade de Cirurgia da Mão, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
,
Flávio Faloppa 
3   Professor Titular, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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Abstract

Objective The objective of the study was to determine the prevalence of absence of palmaris longus tendon in a population sample from a multiethnic Brazilian city.

Methods A cross-sectional observational study was carried out between October 2017 and April 2018. We included male and female volunteers aged 18 years or older. The absence of palmaris longus tendon was determined by asking the volunteers to perform the Schaeffer test bilaterally.

Results We prospectively collected data on 1,008 volunteers, 531 male and 477 female, with age between 18 and 74 years (mean 38.4 years). The absence of palmaris longus tendon was observed in 264 (26.2%) volunteers. Bilateral absence was detected in 123 volunteers (12.2%), 60 female (48.8%) and 63 male (51.2%). Unilateral absence was found in 141 patients (14.0%), 54 female (38.2%) and 87 male (61.8%) (p < 0.05).

Conclusion The prevalence of absence of palmaris longus tendon in our study was 26.2%. There was no statistically significant difference between gender and bilaterally. The absence of palmaris longus tendon was predominant on unilateral right side in males.

Keywords

prevalence - tendons - hand deformities, congenital

Authors' Contributions:

Each author contributed individually and significantly to the development of this article: D. P. K., L. M. M. and C. H. F. researched the literature and conceived the study. D. P. K., L. M. M. and F. F. were involved in protocol development and gaining ethical approval. D. P. K., J. B. G. S. and F. F. did the data analysis. C. H. F., D. P. K. and L. R. N. wrote the first draft of the manuscript. All authors reviewed and edited the manuscript and approved the final version of the manuscript


Financial Support

The author(s) received no financial support for the research, authorship, and/or publication of this article.


* Study developed at the Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.




Publication History

Received: 28 June 2022

Accepted: 04 October 2022

Article published online:
08 December 2023

© 2023. Sociedade Brasileira de Ortopedia e Traumatologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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