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STUDY DESIGN This study examined the effect of lumbar nerve root compression on nociceptive neuropeptides in the axonal flow using an in vivo model. OBJECTIVES The aim was to investigate changes in axonal flow after nerve root compression by using immunohistochemical techniques to detect substance P (SP) and somatostatin (SOM), which is thought to be(More)
We report a case of a hematoma of ligamentum flavum at T11-12 in a 66-year-old man who presented with progressive weakness of the right foot and numbness of both legs. Past history was negative and no precipitating episode of lower back sprain or trauma. The resected T11 and T12 laminas showed old hematoma with degenerative changes in the ligamentum flavum.(More)
OBJECT The authors conducted a study to examine whether high-resolution [18F]fluorodeoxyglucose (FDG)-positron emission tomography (PET) could be used to visualize deterioration of cervical spinal cord function associated with various degrees of compression and to determine its potential usefulness during assessment of compressive myelopathy. METHODS In(More)
OBJECT The authors investigated the usefulness of using an expandable cage strut in anterior reconstruction after osteoporotic vertebral collapse in patients with neurological deficits. METHODS Twenty-eight patients who had undergone expandable cage strut-augmented anterior thoracolumbar reconstruction participated in a follow-up review for a mean of 4.9(More)
BACKGROUND The neurological outcome of decompressive surgery for cervical myelopathy is influenced by several factors. Although each factor may have an independent effect, it is more likely that the outcome is influenced by more than one factor. We examined the results of multivariate analysis and multiple regression analysis of the neurological outcome of(More)
STUDY DESIGN Surgically obtained cervical herniated intervertebral discs were examined histologically and immunohistochemically. The production of nitric oxide (NO) in the local tissue was examined using the electron spin resonance (ESR) method. OBJECTIVES To investigate the local histologic and immunohistochemical changes in cervical disc herniation,(More)
STUDY DESIGN This study was aimed at investigating changes in the dorsal horn of the lumbar cord induced by mechanical compression using an in vivo model. OBJECTIVE To determine the effect of axonal flow disturbance in the dorsal horns induced by nerve root compression. SUMMARY OF BACKGROUND DATA Few studies have looked at changes of synapses within the(More)
OBJECT In this paper the authors' goal was to identify histological and immunohistochemical differences between cervical disc hemrniation and spondylosis. METHODS A total of 500 cervical intervertebral discs were excised from 364 patients: 198 patients with disc herniation and 166 patients with spondylosis. We examined en bloc samples of(More)
OBJECT The aims of this study were to review the clinicoradiological findings in patients who underwent decompressive surgery for proximal and distal types of muscle atrophy caused by cervical spondylosis and to discuss the outcome and techniques of surgical intervention. METHODS Fifty-one patients (43 men and 8 women) with proximal (37, with arm drop)(More)
Hematomas following surgery or trauma usually resolve without complications. In some instances, for reasons that are not completely understood, hematoma formation is followed by slow expansion of the mass. The large fluid collection is surrounded by a pseudocapsule and fibrous tissue, and present months or years after the original insult, as chronic(More)