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Surgical and Radiologic Anatomy

, Volume 37, Issue 1, pp 3–9 | Cite as

The prevalence of extensor digitorum brevis manus and its variants in humans: a systematic review and meta-analysis

  • Kaissar Yammine
Review

Abstract

Extensor digitorum brevis manus (EDBM) is a rare variant extensor muscle of the dorsum of the hand, which constitutes a diagnostic challenge in clinical practice. The aims of the review are to provide a better estimate of the frequency of EDBM and its association with variables such as ancestry, gender, laterality and side. Twenty-six studies met the inclusion criteria. The pooled rates of the meta-analyses yielded the following values: (a) an overall crude cadaveric prevalence of 4 %, (b) an overall true cadaveric prevalence of 2.5 %, (c) a true cadaveric prevalence of 2.6 % in European ancestry, (d) a true cadaveric prevalence of 2.3 % in Asian ancestry (2.07 % in Japanese and 4.2 % in Indian), (e) a bilateral occurrence in 26.3 %. Non-significant association was found between EDBM presence and ancestry, gender or side. The EDBM muscle was inserted on the index in 77 % of cases and on the long finger in the remaining 23 %. This is the first evidence-based anatomical review, which addresses the frequency of EDBM in humans.

Keywords

Extensor digitorum brevis manus Extensor indicis brevis Anatomy Evidence-based medicine Hand 

Notes

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag France 2014

Authors and Affiliations

  1. 1.The Foot and Hand Clinic and The Center for Evience-Based Sport & Orthopedic ResearchEmirates HospitalDubaiUAE

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