Anatomic variation of palmaris longus and flexor digitorum superficialis of little finger in Indian population

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Anatomic variation of palmaris longus and flexor digitorum superficialis of little finger in Indian population

Authors
  • Mugalur, Aakash
  • Shahane, Sunil M.
  • Samant, Ashwin
  • Pathak, Aditya C.
  • Patil, Atul
  • Reddy, Rajeev
Type
Published Article
Journal
SICOT-J
Publisher
EDP Sciences
Publication Date
Jun 04, 2015
Volume
1
Identifiers
DOI: 10.1051/sicotj/2015006
Source
EDP Sciences
Keywords
Disciplines
  • Original Article
License
Green

Abstract

Introduction: Palmaris longus and flexor digitorum superficialis of the little finger are highly variable anatomically. The tendons vary in different parts of the globe and different regions of the same country. Many studies have negated an association between the tendons. However, most of the studies have a sample size of less than 500 subjects. Aims and objectives: The aim was to study the tendons in the Indian population and study the association, if any between the tendons and to test functional significance of the tendons using the Michigan Hand Outcomes Questionnaire. Methods and material: It was a single centre cross-sectional study with a sample size of 1500 in the age group of 20–60 years. The subjects were tested for the presence of the tendons and their functionality was assessed by Michigan Hand Outcomes Questionnaire. The data was tabulated and was assessed using SPSS 13.0 software. Results: Palmaris longus was bilaterally absent in 10.9% and flexor digitorum superficialis of the little finger was bilaterally absent in 42% of the cases. There was a statistically significant association between the tendons when considered bilaterally. The tendons did not have any bearing on the functionality as assessed by the Michigan Hand Outcomes Questionnaire. Conclusions: There is significant variability in the palmaris longus and flexor digitorum superficialis tendon to the little finger not only in the different countries but in different regions of the same country. However despite the various clinical and medicolegal aspects concerning both the tendons, they do not have much bearing on the functionality of the hand.

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