نتایج جستجو برای: lamina dura
تعداد نتایج: 13912 فیلتر نتایج به سال:
BACKGROUND AND OBJECTIVES This study aimed to evaluate the transverse and longitudinal distensibility of the posterior human lumbar dura mater. Results are compared with previous literature on biomechanical property studies. Possible clinical implications were also examined. METHODS Samples of human dural sac were obtained from autopsy studies in three adult male cadavers. Dural sac samples w...
BACKGROUND Success with bone morphogenetic protein-2 (BMP-2) has been widely reported in the osseous reconstruction of large calvarial defects. These efforts have required enormous doses of BMP-2 and are not sufficiently refined to facilitate the detail-oriented repair required for intricate craniofacial structures. We have previously shown that inkjet-based bioprinting technologies allow for p...
Background: Dural substitutes are commonly utilized to repair dural defects incurred during routine neurosurgical procedures. The ideal dura substitute should effectively seal the defect, encourage neoduralization, and regenerate native dura prior to graft resorption. Cerafix® Dura Substitute is a novel non-biologic, fully-resorbable graft that has previously been shown to successfully repair c...
Dural exposure may occur during the course of thinning the tegmen tympani and tegmen mastoideum in mastoid procedure. If large area of dura is exposed or lacerated, cerebrospinal fluid and brain herniation may enter the mastoid cavity. We report a case of a patient with injured dura mater and tegmen mastoideum during mastoidectomy for chronic suppurative otitis media with cholesteatoma managed ...
The mechanical mismatch between soft neural tissues and stiff neural implants hinders the long-term performance of implantable neuroprostheses. Here, we designed and fabricated soft neural implants with the shape and elasticity of dura mater, the protective membrane of the brain and spinal cord. The electronic dura mater, which we call e-dura, embeds interconnects, electrodes, and chemotrodes t...
Idiopathic hypertrophic pachymeningitis (IHP) is a rare disease, and it is characterized by chronic progressive inflammatory fibrosis and thickening of the dura mater with resultant compression of the spinal cord or neural structure without any identifiable cause. It can occur in the intracranial or spinal dura mater alone or as a craniospinal form. The spinal form is rarer than the cranial for...
A new technique for decompressive craniectomy with duraplasty was developed for cases in which brain swelling was present at dural closure. Expanded polytetrafluoroethylene (ePTFE) membrane is placed under the dura, covering the brain surface, without the use of sutures. The dura is then loosely sutured. The procedure was used in 13 patients. No leakage of cerebrospinal fluid into the epidural ...
A 1-day-old boy with the characteristics of Adams-Oliver syndrome was presented. Adams-Oliver syndrome has a wide spectrum of anomalies ranging from aplasia cutis congenita, cutis marmorata telangiectatica congenita and transverse limb defects to lethal anomalies. Our patient had aplasia cutis congenita with scalp, skull and dura defect. He had also a large dura defect with herniation of brain ...
Idiopathic hypertrophic cranial pachymeningitis is a rare inflammatory disease with diffused involvement of the dura. Often, the definite diagnosis is made immediately with biopsy and the involved dura is removed surgically. Consequently, extensive preoperative imaging studies usually are not available. We reviewed a case of idiopathic hypertrophic cranial pachymeningitis and collectively summa...
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