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Day: May 25, 2016

Unusual exophytic neurocytoma of thoracic spine mimicking meningioma: a case report and review of the literature.

By wp_zaman

Unusual exophytic neurocytoma of thoracic spine mimicking meningioma: a case report and review of the literature.

Eur Spine J. 2011 Jul;20 Suppl 2:S239-42

Authors: Tsai CY, Tsai TH, Lin CH, Cheng YH, Lieu AS

Abstract
Extraventricular neurocytoma (EVN) in the spinal cord is extremely rare and only 15 cases have been reported in the English literature. Fourteen cases presented as an intramedullary lesion with spinal cord enlargement in cervico-thoracic segment and one case presented as an extramedullary lesion originating from cauda equina. Herein, we report an unusual spinal neurocytoma with exophytic growth from the thoracic spinal cord with cord compression mimicking meningioma. To our knowledge, this is the first case of exophytic spinal neurocytoma recorded in the English literature.

PMID: 21107988 [PubMed – indexed for MEDLINE]

Bone cement distribution is a potential predictor to the reconstructive effects of unilateral percutaneous kyphoplasty in OVCFs: a retrospective study

By wp_zaman

BACKGROUND: Osteoporotic vertebral compression fracture (OVCF) is a common type of fracture, and percutaneous kyphoplasty (PKP) is an eligible solution to it. Previous studies have revealed that both the volume and filling pattern of bone cement correlate with the clinical outcomes after PKP procedure. However, the role of bone cement distribution remains to be illustrated. METHODS: To retrospectively evaluate the relationship between the bone cement distribution and the clinical outcomes of unilateral PKP, we enrolled 73 OVCF patients receiving unilateral PKP treatment. All the intervened vertebrae were classified into three groups based on the bone cement distribution observed on postoperative X-ray films. Preoperative and postoperative radiographic parameters including the vertebral height and kyphotic Cobb angle were recorded, and anterior vertebral height restoration rate (AVHRR) and Cobb angle correction (CR) were then calculated to assess the vertebral height reconstruction. Preoperative and postoperative Oswestry Disability Index (ODI) and visual analogue scale (VAS) were adopted by interviewing patients to assess the mobility improvement and pain relief. Demographic data, body mass index (BMI), lumbar bone mineral density (evaluated by BMD T-score) of each patient, bone cement volume (BV), and bone cement extravasation (BE) were also recorded. Between- and within-group comparisons and multivariable correlation analysis were carried out to analyze the data. RESULTS: VAS and ODI scores were both significantly improved in all of the enrolled cases with no significant differences between groups. Among the three groups, the average age, AVHRR, and BV were significantly different. Occurrence of BE was significantly different between two of the three groups. AVHRR was demonstrated to correlate negatively with preoperative anterior vertebral height ratio and positively with preoperative Cobb angle, CR, diffusion score, and ODI changes. CONCLUSIONS: Bone cement distribution is a potential predictor to the reconstructive effects in unilateral PKP for OVCFs. Bone cement distribution is associated with AVHRR and BV, as well as the risk of BE occurrence. Greater bone cement distribution may indicate better vertebral restoration along with a higher BE risk

Vertebroplasty and kyphoplasty–a systematic review of cement augmentation techniques for osteoporotic vertebral compression fractures compared to standard medical therapy.

By wp_zaman

Related Articles Vertebroplasty and kyphoplasty–a systematic review of cement augmentation techniques for osteoporotic vertebral compression fractures compared to standard medical therapy. Maturitas. 2012 May;72(1):42-9 Authors: Robinson Y, Olerud C Abstract After more than two decades the treatment effect of cement augmentation of osteoporotic vertebral compression fractures (VCF) has now been questioned by two blinded randomised…