SynthesisSurgical and radiologic anatomy : SRA2020
Variations and morphometrics of palmaris longus in fetuses: a meta-analysis of cadaveric studies.
Synthesis in Surgical and radiologic anatomy : SRA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- PREVALENCE OF PALMARIS LONGUS TENDON AGENESIS IN A POPULATION OF MEDICAL STUDENTS.Acta ortopedica brasileira · 2026Article
- Testing the inheritance pattern of palmaris longus muscle absence.Surgical and radiologic anatomy : SRA · 2025Article
- Prevalence, variants, and morphometrics of Palmaris Longus tendon: a magnetic resonance imaging study.Surgical and radiologic anatomy : SRA · 2021Article
- Determination of congenital absence of palmaris longus tendon with clinical examination and ultrasonography.Surgical and radiologic anatomy : SRA · 2021Observational
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Authors and funding
3 authors.
Funding
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Abstract
The palmaris longus muscle, and its tendon, is one of the most variable muscles in humans. Though it has been extensively researched in the adult population, its variations and development in the fetal period were rarely investigated. The aim of this meta-analysis is to conduct an evidence synthesis on PL variations and the prevalence of its agenesis during intrauterine development. Seven studies met the inclusion criteria comprising 497 fetuses and 1027 fetal limbs. The true and crude weighted prevalence rates were of 81.2% and 77%, respectively. The bilateral and unilateral prevalence estimates were of 62.2% and 15%, respectively. No significant differences were found for side-based and gender-based prevalence values. There were significant frequency differences between the studied populations (p < 0.0001).The Japanese population had the highest prevalence, the Turkish had the lowest and the European value was in between. Out of 494 studied muscles, 67 (13.5%) variations were noted. The weighted proportions of the commonest morphological variations were as follows: (a) bifid tendon in 10 (2%) cases, (b) inverted PL muscle in 9 (1.9%), muscle duplication in 6 (1.36%), and digastric muscle in 25 (5.1%). Prevalence values of the fetal PL were similar to those reported in adults; however, variations seem to be higher than in older populations. The true, crude, and ancestry-based prevalence presence rates of PL in fetuses were found to be similar to those of the adult population.
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