Background: In patients with nerve tissue defects, the use of autologous nerve grafts is the standard method of treatment. Alternatives to autologous, nerve grafts have attracted the attention of reconstructive surgeons. In this study, the results of nerve repairs using acellular dermal matrix (ADM) in an experimental rat sciatic nerve defect model are presented.
View Article and Find Full Text PDFBackground: Current methods used to measure the muscle strength required to achieve plantar flexion may yield highly variable results depending on the perception of the physician conducting the examination because these tests involve subjective and qualitative evaluation.
Objective: To describe and evaluate the efficacy of a novel examination technique that can quantitatively measure plantar flexion in L5-S1 disc herniation.
Materials And Methods: A total of 32 patients (average age: 49.
Aim: Epineural adhesion after peripheral nerve surgery is common. The purpose of this study was to evaluate the macroscopic and histopathologic effects of topical mitomycin C and daunorubicin on epineural scar formation.
Material And Methods: In this study, we used 15 rats (30 nerves).
Study Design: This was a retrospective study of patients who had developed a dural tear after thoracic and lumbar spine surgery that was not recognized during the surgery, and was treated either by lumbar drainage or over-sewing of the wounds.
Purpose: To revisit the treatment strategies in postoperative dural leaks and present our experience with over-sewing of the wound and lumbar drainage.
Overview Of Literature: Unintended durotomy is a frequent complication of spinal surgery.
This paper presents the use of recurrent neural networks (RNNs) for diagnosis of carpal tunnel syndrome (CTS) (normal, right CTS, left CTS, bilateral CTS). The RNN is trained with the Levenberg-Marquardt algorithm. The RNN is trained on the features of CTS (right median motor latency, left median motor latency, right median sensory latency, left median sensory latency).
View Article and Find Full Text PDFThis paper illustrates the use of mixture of experts (ME) network structure to guide model selection for diagnosis of two subtypes of adult hydrocephalus (normal-pressure hydrocephalus-NPH and aqueductal stenosis-AS). The ME is a modular neural network architecture for supervised learning. Expectation-Maximization (EM) algorithm was used for training the ME so that the learning process is decoupled in a manner that fits well with the modular structure.
View Article and Find Full Text PDFObject: Epineural fibrosis may complicate peripheral nerve surgeries and currently is considered as one of the main factors responsible for failed surgeries. The authors investigated the postoperative antiscarring effects of topically applied doxorubicin (DXR) on rat sciatic nerves.
Methods: The sciatic nerves were dissected from the surrounding tissue and exposed bilaterally in 20 Wistar albino adult male rats.
Clin Neurol Neurosurg
September 2006
The presence of myelomeningocele at multiple levels along the spinal column is extremely rare. There are only a few cases of double myelomeningocele reported in the literature. We report the case of a newborn male who had two myelomeningoceles with one at the cervical level and the other at the lumbar level.
View Article and Find Full Text PDFThe role of topically applied mitomycin C in preventing postoperative perineural fibrosis was examined by gross anatomical dissection and histological analysis in rats. The sciatic nerve was exposed bilaterally in 24 Wistar adult male rats, and an abrasion injury was produced on the exposed surface of the biceps femoris muscle in all animals. In the experimental group, cotton pads soaked with mitomycin C (0.
View Article and Find Full Text PDFPrimitive neuroepithelial tumors are the least common among supratentorial tumors in children. They pose great diagnostic difficulty, preoperatively as well as pathologically. Being quite rare, cerebral neuroblastomas are accepted as a distinct pathological entity, which differs from other neuroectodermal tumors, although clinically, radiologically, and morphologically at operation they are indistinguishable.
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