نتایج جستجو برای: dural ectasia
تعداد نتایج: 7314 فیلتر نتایج به سال:
Purpose To describe the case of a patient developing corneal ectasia following LASIK for the correction of myopic astigmatism. Materials and Methods A 39-year-old man underwent bilateral uneventful LASIK for myopic astigmatism of -10.25 -1.75 ×040 OD and -8.00 -2.50 ×005 OS. Preoperative corneal pachymetry was 542 micrometers OD and 543 micrometers OS. Preoperative corneal topography showed b...
Morphometrical analysis of the thoracolumbar dural sac in sheep using computed assisted myelography.
OBJECTIVES Sheep are frequently used as animal models in experimental spinal injury studies. Therefore, extensive knowledge of ovine spinal dimensions is essential for experimental design and interpretation of results obtained in these trials. This study aimed to obtain quantitative morphometrical data of the thoracolumbar dural sac in sheep and determine the anatomical relationship between the...
BACKGROUND Infraorbital nerve constriction (IoNC) is an experimental model of trigeminal neuropathy. We investigated if IoNC is accompanied by dural extravasation and if botulinum toxin type A (BoNT/A) can reduce pain and dural extravasation in this model. METHODOLOGY/PRINCIPAL FINDINGS Rats which developed mechanical allodynia 14 days after the IoNC were injected with BoNT/A (3.5 U/kg) into ...
Use of preoperative MR to predict dural, perineural, and venous sinus invasion of skull base tumors.
PURPOSE To assess the accuracy of MR imaging in predicting dural, venous sinus, and perineural invasion by skull base tumors. METHODS The preoperative MR images of 22 patients who had resection of skull base neoplasms were evaluated for the following characteristics: dural enhancement, pial enhancement, local perineural invasion by adjacent tumor, and venous sinus invasion by tumor. The great...
Ectasia After SMILE: Correct Interpretation of Biomechanical Hypothesis We read the case report by Mattila and Holopainen on bilateral ectasia after SMILE in the July 2016 issue with great interest.1 It is evident that preoperative examination with topography, tomography, and slit-lamp examination needs to be strictly followed by surgeons before small incision lenticule extraction (SMILE), LASI...
OBJECTIVE Incisional cerebrospinal fluid (CSF) leakage after cranial surgery is a significant cause of morbidity due to poor wound healing and infection, meningitis, and pseudomeningocele formation. Many common dural closure techniques, such as sutures, autologous grafts, gelatin or collagen sponges, and fibrin glues, are used to achieve watertight closure, although none are US Food and Drug Ad...
OBJECTIVE To present the incidence and management of dural tears and cerebrospinal fluid leakage during corrective osteotomy [Pedicle Subtraction Osteotomy (PSO) or Smith-Petersen Osteotomy (SPO)] for ankylosing spondylitis with kyphotic deformity. METHODS A retrospective study was performed for ankylosing spondylitis patients with fixed sagittal imbalance, who had undergone corrective osteot...
BACKGROUND AND PURPOSE Meningeal inflammatory myofibroblastic tumor (IMT) has been rarely reported, and its prognosis is still unclear. Our purpose was to describe the imaging features of patients with meningeal IMT and their results on follow-up studies. MATERIALS AND METHODS Twenty-four MR images in 10 consecutive patients with pathologically proved meningeal IMTs were retrospectively evalu...
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