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Surgical and Radiologic Anatomy

, Volume 41, Issue 11, pp 1307–1314 | Cite as

Prevalence of the Linburg–Comstock variation through clinical evaluation

  • Mirela ErićEmail author
  • Kaissar Yammine
  • Vipin Gosh
  • Georg Feigl
  • Dušica Marić
Original Article
  • 83 Downloads

Abstract

Introduction

Linburg–Comstock variation, the tendinous interconnection between flexor pollicis longus and flexor digitorum profundus, is known to have a wide frequency range. Its prevalence is reported with a range of 13–66%. The aim of the study was to assess this variation in general population and to correlate it with gender and side.

Material and methods

This prospective study included 215 subjects (82 males and 133 females). Two clinical tests were conducted to diagnose the variation and to detect any related symptomatology. The primary outcome was set to be the prevalence of Linburg–Comstock variation. Secondary outcomes were defined as gender-based prevalence, side-based prevalence, and Linburg–Comstock variation prevalence association with gender and side.

Results

Linburg–Comstock variation was clinically diagnosed in 130 (60.47%) participants. Unilateral and bilateral prevalence were of 17.21% and 43.26%, respectively, yielding a statistically significant difference. Right-sided and left-sided presence were calculated at 7.44% and 9.77%. Bilateral prevalence was statistically more common in females. Right-sided variation was found to be more frequent in males while left-sided variation was more prevalent in females. The index finger was the most commonly involved with prevalence of 91.03%. Symmetry was noted in 67.74% of subjects.

Conclusion

The results of our study demonstrated a relatively high prevalence of the Linburg–Comstock variation in Serbian population. We noted a few unusual cases and this finding point to the existence of the broader spectrum of Linburg–Comstock variation, and complexity of the flexor apparatus of the hand, so, further investigations about this topic are needed to improve our knowledge. Due to the possibility of false-positive result during clinical testing we suggest to use expanded clinical method.

Keywords

Linburg–Comstock variation Flexor pollicis longus Flexor digitorum profundus Hand 

Notes

Author contributions

ME was involved in project and protocol development, data collection and management, data analysis, manuscript writing and editing; KY was involved in data management and analysis, manuscript writing and editing; VG was involved in data collection and manuscript editing; GF and DM were involved in manuscript writing and editing.

Funding

No funding was received for this study.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2019

Authors and Affiliations

  • Mirela Erić
    • 1
    Email author
  • Kaissar Yammine
    • 2
    • 3
  • Vipin Gosh
    • 4
  • Georg Feigl
    • 5
  • Dušica Marić
    • 1
  1. 1.Department of Anatomy, Faculty of MedicineUniversity of Novi SadNovi SadSerbia
  2. 2.Department of OrthopedicsLebanese American University Medical Center-Rizk Hospital, Lebanese American University School of MedicineBeirutLebanon
  3. 3.The Center for Evidence-Based Anatomy, Sport and Orthopedic ResearchBeirutLebanon
  4. 4.Faculty of MedicineUniversity of Novi SadNovi SadSerbia
  5. 5.Institute of Macroscopic and Clinical AnatomyMedical University of GrazGrazAustria

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