The outermost layer is the dura mater. The middle layer is the arachnoid mater. The inner layer is the pia mater. The epidural space is the space between the vertebral column and the dura mater. There is only a 'potential' epidural space in the skull. The subdural space is the space between the dura mater and the arachnoid mater. The subarachnoid space is the space between the arachnoid mater a...

We introduce a 15 cm, 26-gauge spinal needle (Steriseal Ltd, Redditch) through a standard Tuohy needle (9·6 cm, 16-gauge) which has its tip in the epidural space. Once the dura has been punctured the spinal needle is only really held in place by the dura. It is therefore quite difficult to attach the syringe of local anaesthetic and then inject without inadvertently placing the tip of the spina...

The outermost layer is the dura mater. The middle layer is the arachnoid mater. The inner layer is the pia mater. The epidural space is the space between the vertebral column and the dura mater. There is only a 'potential' epidural space in the skull. The subdural space is the space between the dura mater and the arachnoid mater. The subarachnoid space is the space between the arachnoid mater a...

Utilizing 125I-BSA administered intravenously, a simple, reliable, and sensitive method was established for the detection of plasma protein extravasation in the dura of rats and guinea pigs following chemical, electrical, or immunological stimulation. Extravasated 125I-BSA or Evans blue was noted in the dura and conjunctiva but not in the temporalis muscle of saline-perfused rats following intr...

UNLABELLED BACKGROUND AND STUDY OBJECT: A leak-proof dura closure after elective surgery for intradural spinal lesions is important to achieve an uncomplicated postoperative course. Because many different closure techniques and dura substitutes exist, we tried to identify the superior material and technique to avoid cerebrospinal fluid leaks (CSFLs). PATIENTS AND METHODS Between 2004 and 2009...

STUDY DESIGN Anatomic study of the suboccipital region, specifically the deep muscles of the suboccipital triangle, was performed in cadaveric specimens. OBJECTIVE To observe and describe the relationship between the deep suboccipital musculature and the spinal dura. SUMMARY OF BACKGROUND DATA A review of the literature revealed no reports describing a physical connection between suboccipit...

BACKGROUND The aim of this study was to evaluate the application of medical adhesive glue for tension-reduced duraplasty in decompressive craniotomy. MATERIAL AND METHODS A total of 56 cases were enrolled for this study from Jan 2013 to May 2015. All patients underwent decompressive craniotomy and the dura was repaired in all of them with tension-reduced duraplasty using the COMPONT medical adh...

Optogenetics combines optics and genetics to control neuronal activity with cell-type specificity and millisecond temporal precision. Its use in model organisms such as rodents, Drosophila, and Caenorhabditis elegans is now well-established. However, application of this technology in nonhuman primates (NHPs) has been slow to develop. One key challenge has been the delivery of viruses and light ...