PREVALENCE OF PALMARIS LONGUS TENDON AGENESIS IN A POPULATION OF MEDICAL STUDENTS.

IF 0.6 4区医学 Q4 ORTHOPEDICS

Acta Ortopedica Brasileira Pub Date : 2026-02-13 eCollection Date: 2026-01-01 DOI:10.1590/1413-785220263401e297925

Paola Dias Tagliacozzo, Camila Cassillo, Julio Cesar Gali, Wallace Rodrigo Dantas, Leonardo Goya Machado, Edie Benedito Caetano

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Abstract

Objective: To assess the prevalence of palmaris longus (PL) tendon agenesis in a population of medical students.

Methods: The presence of the palmaris longus tendon was evaluated using Schaeffer's test, applied bilaterally in 100 medical students, totaling 200 evaluated antimeres. The data were analyzed for unilateral or bilateral presence of the tendon, in relation to gender, laterality (right or left), and the occurrence of agenesis.

Results: Agenesis of the palmaris longus tendon was observed in 32 out of 200 evaluated antimeres (16%). Among female participants, agenesis was identified in 21 antimeres (21%), whereas in males it was observed in 11 antimeres (11%). Tendon absence was more frequent in the left upper limb, regardless of gender.

Conclusion: The prevalence of palmaris longus tendon agenesis in the studied sample was 16%, with a higher frequency among females. Tendon absence was more common on the left side in both genders. Level of Evidence IV; Case series.

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医学生掌长肌腱发育不全的患病率。

目的：了解医学生掌长肌（PL）肌腱发育不全的患病率。方法：应用Schaeffer试验对100名双侧医科学生掌长肌腱的存在性进行评估，共200例。数据分析了单侧或双侧肌腱的存在，与性别、侧边（右或左）和发育不全的发生有关。结果：200例患者中32例（16%）出现掌长肌腱发育不全。在女性参与者中，有21个（21%）被发现发育不全，而在男性参与者中有11个（11%）被发现发育不全。不论性别，左上肢肌腱缺失更为常见。结论：研究对象掌长肌腱发育不全的发生率为16%，女性发生率较高。在两性中，肌腱缺失在左侧更为常见。证据水平IV；系列。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Ortopedica Brasileira Orthopedics-

CiteScore

0.90

自引率

14.30%

发文量

审稿时长

25 weeks

期刊介绍： A Revista Acta Ortopédica Brasileira, órgão oficial do Departamento de Ortopedia e Traumatologia da Faculdade de Medicina da Universidade de São Paulo (DOT/FMUSP), é publicada bimestralmente em seis edições ao ano (jan/fev, mar/abr, maio/jun, jul/ago, set/out e nov/dez) com versão em inglês disponível nos principais indexadores nacionais e internacionais e instituições de ensino do Brasil. Sendo hoje reconhecidamente uma importante contribuição para os especialistas da área com sua seriedade e árduo trabalho para as indexações já conquistadas.