STUDY DESIGN Experimental study in animals. PURPOSE Study the clinical behavior of animals after an induced leakage of cement during vertebroplasty in pigs. Study the distribution of polymethylmetacrilate inside the epidural space and prevertebral muscle. Study the histological findings of the spinal cord and muscles, which contact with cement. OVERVIEW OF LITERATURE Although vertebroplasty...

Recent studies have identified that the myodural bridge (MDB) between the rectus capitis posterior minor (RCPmi) and the cervical spinal dura mater in the posterior atlanto-occipital interspace in humans. And it was supposed that the MDB may play essential physiological roles. As a result, the MDB is possibly a highly conserved structure in the evolution of mammals. However, there is little con...

The collagenous dura mater requires a secure closure following implantation of neural prosthetic devices to avoid complications due to cerebrospinal fluid leakage and infections. Alginate was previously suggested for use as a dural sealant. The liquid application and controllable gelling conditions enable alginate to conform to the unique geometries of a neural prosthetic device and the surroun...

OBJECTIVES To evaluate the repair of cerebrospinal fluid rhinorrhea through the transnasal approach, we investigated histopathologic findings of grafting with human temporalis fascia and dura mater in a rabbit model. DESIGN AND METHODS Thirty-two rabbits were assigned to three groups according to the graft material to be used: human dura mater, human temporalis fascia, and autologous muscle f...

BACKGROUND Complex cranial wounds can be a problematic occurrence for surgeons. Vacuum-assisted closure devices have a wide variety of applications and have recently been used in neurosurgical cases involving complex cranial wounds. There is only one report regarding the use of a vacuum-assisted closure device with loss of dura mater. We report a complicated case of a necrotic cranial wound wit...

RATIONALE Idiopathic hypertrophic pachymeningitis (IHP) is a rare condition, characterized by a chronic fibrosing inflammatory process usually involving either the intracranial or spinal dura mater, but rarely both. Here, we report a rare case of IHP affecting both the intracranial and spinal dura mater. We also discussed the diagnosis, management, and outcome of IHP. PATIENT CONCERNS We revi...

STUDY DESIGN Intraparenchymal pressure (IPP) measurements in an in vitro cadaveric model of CNS edema. OBJECTIVE To assess the contribution of pia mater to IPP and the effect of piotomy. SUMMARY OF BACKGROUND DATA Multicenter randomized control trials have shown that decompression with durotomy/duroplasty significantly decreases intracranial pressure (ICP). There is a paucity of evidence re...

The aim of the study was to determine experimentally the stress as strain function as well as the orthotropy and heterogeneity of porcine dura mater of the cervical spinal cord. Material was divided into groups based on the place of collection, considering the dorsal side and ventral side, specifying the number of cervical vertebra, and the direction of tension of the sample - longitudinal or c...

The connective tissue attachments to the cervical spinal dura mater originating from the ligamentum nuchae (LN) and rectus capitis posterior minor (RCPM) muscle were evaluated in 30 cadaveric spines. Magnetic resonance images (MRIs) were correlated with the attachments in four cadaveric specimens. Attachments from the LN to the RCPM were also identified. The LN and the RCPM to dura attachments ...

Neurosurgical Division of the Hospital Geral Santa Isabel, João Pessoa PB, Brazil;Associated Physician. The true importance of performing a watertight dural closure, for neurological procedures, is to avoid several complications such as cerebrospinal fluid (CSF) leakage, pseudomeningocele (PSM), meningitis, cerebral abscess, tonsilar herniation, hydrocephalus, etc. A variety of materials has be...