J Korean Neurosurg Soc.  2019 Jul;62(4):382-388. 10.3340/jkns.2018.0130.

Biomechanical Properties of the Cranial Dura Mater with Puncture Defects: An In Vitro Study

• Aydın HE
• Kızmazoglu C
• Kaya I
• Husemoglu
• Sozer G
• Havıtcıoglu H
• Arslantas

• KMID: 2463668
• DOI: http://doi.org/10.3340/jkns.2018.0130

Abstract

OBJECTIVE
The primary aim of this investigation was to explore the nature of dura mater biomechanics following the introduction of puncture defect(s).
METHODS
Twenty-eight dura mater specimens were collected during autopsy from the department of forensic medicine of the authors' institution. Specimens were divided randomly into one of four groups : group I (cranial dura mater; n=7), group II (cranial dura mater with one puncture defect; n=7); group III (cranial dura mater with two puncture defects; n=7), and group IV (cranial dura mater with three puncture defects; n=7).
RESULTS
The mean±standard deviation tensile strengths of the dura mater were 8.35±3.16, 8.22±3.32, 7.13±1.77, and 6.94±1.93 MPa for groups I, II, III, and IV, respectively. There was no statistical difference between all groups. A single, two or more punctures of the dura mater using a 20-gauge Quincke needle did not affect cranial dura tensile strength.
CONCLUSION
This biomechanical study may contribute to the future development of artificial dura mater substitutes and medical needles that have a lower negative impact on the biomechanical properties of dura mater.

Keyword

Biomechanical phenomena; Dura mater; Tensile strength; Punctures; Needles

MeSH Terms

Autopsy
Biomechanical Phenomena
Dura Mater*
Forensic Medicine
In Vitro Techniques*
Needles
Punctures*
Tensile Strength