To minimize surgical complications and staged procedures halo-traction is often used during deformity corrections. But the use of halo-traction in the treatment of refractory cervical kyphosis secondary to infections has never been reported. This study investigated the role of halo-traction in the treatment of cervical infection patients associated with refractory kyphosis.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
October 2022
Ice cores from alpine glaciers are unique archives of past global and regional climate conditions. However, recovering climate records from these ice cores is often hindered by the lack of a reliable chronology, especially in the age range of 100 to 500 anni (a) for which radiometric dating has not been available so far. We report on radiometric Ar dating of an ice core from the Tibetan Plateau and the construction of a chronology covering the past 1,300 a using the obtained Ar ages.
View Article and Find Full Text PDFBackground: Pyogenic vertebral osteomyelitis (PVO), which is a potentially life-threatening condition and is associated with significant morbidity and mortality, is a cause of back pain that can lead to neurologic deficits if not diagnosed in time and effectively treated. The objective of this study is to compare the efficacy of posterior single-segment and short-segment fixation combined with one-stage posterior debridement and fusion for the treatment of mono-segmental lumbar or lumbosacral PVO.
Methods: Charts of all patients with mono-segmental lumbar or lumbosacral PVO were treated by single-stage posterior debridement, bone graft fusion, and pedicle screw fixation from April 2012 to January 2016.
Background: Adolescent idiopathic scoliosis (AIS) is a disease characterized by changes in the three-dimensional structure of the spine. Studies have shown that the development of AIS might be associated with genetic, biomechanics, endocrine factors and abnormal bone or cartilage development.
Methods: Blood samples collected from 301 female patients (161 females with AIS and 140 females without AIS) were used for genotyping.
Introduction: The treatment of extremely severe and rigid spinal deformities was a great surgical challenge. Pulmonary impairment often occurred, which increased the challenges to already daunting surgical approaches. The present study was performed to evaluate the safety and efficacy of posterior-only surgical correction with heavy halo-femoral traction (HFT) for the treatment of extremely severe and rigid adolescent idiopathic scoliosis (AIS) of more than 130°.
View Article and Find Full Text PDFIntroduction: Traditionally, the common belief has been that, all patients with Chiari I malformation (CM-1) and syringomyelia (SM) undergoing a neurosurgical procedure even if they are neurologically asymptomatic. As the pathology of CM-1 and SM has become better understood, the traditional concepts have been challenged. The objective of this study was to investigate the minimum 5-year follow-up clinical outcomes of surgical treatment of patients with scoliosis associated with CM-1 and SM and to evaluate the necessity of neurosurgical intervention before corrective surgery.
View Article and Find Full Text PDFBackground: Biomechanical properties of rods determine their ability to correct spinal deformity and prevention of postoperative sagittal and coronal changes. The selection of a proper rod material is crucial due to their specific mechanical properties that influence the surgical outcome. The purpose of this study is to compare the effectiveness of cobalt chromium rods versus titanium rods for the treatment of spinal deformity by a systematic review and meta-analysis.
View Article and Find Full Text PDFObjective: To investigate the relationship between melanocortin-3 receptor (MC3R) gene polymorphism and tuberculosis (TB) susceptibility in Han population in southern China.
Methods: A total of 341 patients with TB (173 with pulmonary TB and 168 with multifocal TB) and 359 healthy controls were enrolled. Genotyping was performed by PCR and DNA sequencing, and detection of protein was performed by western blot.
Background: Whether or not, prophylactic neurosurgical interventions of split cord malformation (SCM) before undertaking corrective surgery was the focus of debate. The present study was performed to evaluate the safety and efficacy of posterior-only surgical correction with heavy halo-femoral traction for the treatment of rigid congenital scoliosis (RCS) associated with SCM.
Methods: From 2011 to 2017, 24 patients suffered from RCS associated with SCM underwent posterior-only surgical correction with heavy halo-femoral traction.
Objective: We aimed to compare the clinical efficacy of titanium mesh cage with that of allogeneic bone graft to reconstruct the anterior column through posterior approach for the surgical management of patients with thoracolumbar spinal tuberculosis with kyphosis.
Methods: From January 2011 to March 2013, 57 patients with single-segment or two-segments thoracolumbar spinal tuberculosis with kyphosis were treated by debridement, interbody graft, posterior instrumentation, and fusion via a posterior-only procedure. Twenty-four patients in group A were treated with allogeneic bone graft to reconstruct the anterior column, whereas 33 patients in group B were treated with titanium mesh cage.
It has been reported that taxifolin inhibit osteoclastogenesis in RAW264.7 cells. In our research, the inhibition effects of taxifolin on the osteoclastogenesis of human bone marrow-derived macrophages (BMMs) induced by receptor activator of NF-κB ligand (RANKL) as well as the protection effects in lipopolysaccharide-induced bone lysis mouse model have been demonstrated.
View Article and Find Full Text PDFPurpose: To analyse the efficacy and feasibility of surgical management for elderly patients with multilevel non-contiguous spinal tuberculosis(MNSTB)by using one-stage posterior focus debridement, interbody graft using titanium mesh cages, posterior instrumentation and fusion.
Methods: From September 2009 to October 2013, 15 elderly patients with MNSTB were treated with one-stage posterior focus debridement, interbody graft using titanium mesh cages, posterior instrumentation and fusion. There were 10 males and 5 females with a mean age of 63.
OBJECTIVE The objective of this study was to evaluate the clinical efficacy of posterior-only surgical correction of dystrophic scoliosis in patients with neurofibromatosis Type 1 (NF1) using a multiple anchor point method (MAPM). METHODS From 2005 to 2014, 31 patients (mean age 13.5 years old, range 10-22 years old) suffering from dystrophic scoliosis associated with NF1 underwent posterior-only surgical correction using a MAPM.
View Article and Find Full Text PDFEstrogen receptor plays critical roles in osteogenesis but the underlying mechanism remains unclear. In order to determine the effect of ERα and ERβ on several critical factors in regulating osteogenesis in human osteoblasts. Cell based assy, RT-PCR and immunoblot analyses were used in the research.
View Article and Find Full Text PDFLiraglutide, a synthetic analogue of glucagon-like peptide‑1, is utilized in the treatment of type 2 diabetes and obesity. Liraglutide has been previously demonstrated to prevent osteoblastic differentiation of human vascular smooth muscle cells, resulting in the slowing of arterial calcification, however, its effect on bone formation remains unclear. The present study investigated the effect of liraglutide on osteoblastic differentiation using Alizarin Red S staining, and examined the molecular mechanisms underlying the regulatory effect by western blot analysis.
View Article and Find Full Text PDFPurpose: The purpose of this study was to determine the efficacy and feasibility of surgical management of children with thoracolumbar spine tuberculosis with kyphosis by using one-stage posterior focus debridement, interbody grafts, and posterior instrumentation and fusion.
Methods: From October 2010 to September 2013, 21 children with thoracolumbar spinal tuberculosis accompanied by kyphosis were treated with one-stage posterior decompression, interbody grafts, and posterior instrumentation and fusion. There were 13 males and 8 females, aged from 7 to 13 years old (average age 9.
Surgical treatment for spinal tuberculosis includes focal tuberculosis debridement, segmental stability reconstruction, neural decompression and kyphotic deformity correction. For the lesions mainly involved anterior and middle column of the spine, anterior operation of debridement and fusion with internal fixation has been becoming the most frequently used surgical technique for the spinal tuberculosis. However, high risk of structural damage might relate with anterior surgery, such as damage in lungs, heart, kidney, ureter and bowel, and the deformity correction is also limited.
View Article and Find Full Text PDFPurpose: Aged patients represent a high risk group for acquiring spinal tuberculosis, and it still remains a leading cause of kyphosis and paraplegia in developing nations. Aged patients often combined with cardiovascular and respiratory disease and single lung ventilation via anterior approach surgery could result in more post-operative complications. We aimed to analyze the efficacy and feasibility of surgical management of aged patients with lumbo-sacral spine tuberculosis using one-stage posterior focus debridement, interbody graft using titanium mesh cages, posterior instrumentation, and fusion.
View Article and Find Full Text PDFPurpose: We present a retrospective study of 15 cases with severe posttuberculous kyphosis of thoracolumbar region that underwent posterior vertebral column resection.
Methods: From 2004 to 2009, 15 consecutive patients with posttubercular kyphotic deformity underwent posterior vertebral resection osteotomy. Six subjects were females and nine were males with an average age of 35.
Study Design: A retrospective clinical study.
Objective: To evaluate the outcomes of two-level (T12 and L3) pedicle subtraction osteotomy (PSO) for severe thoracolumbar kyphosis in ankylosing spondylitis (AS), and to discuss the surgical strategies of this surgery.
Background: Cases were limited on the results of two-level PSO for correction of severe kyphosis caused by AS, nor on surgical strategies of this type of surgery.
Purpose: The purpose of this study is to compare the clinical outcomes of surgical management by one-stage posterior debridement, transforaminal lumbar interbody fusion (TLIF) and instrumentation and combined posterior and anterior approaches for lumbar spinal tuberculosis, and determine the clinical effectiveness of the posterior only surgical treatment for lumbar spinal TB at the same time.
Methods: Thirty-seven patients who suffered lumbar tuberculosis were treated by two different surgical procedures in our center from May 2004 to June 2012. All the cases were divided into two groups: 19 cases in Group A underwent one-stage posterior debridement, TLIF and instrumentation, and 18 cases in Group B underwent posterior instrumentation, anterior debridement and bone graft in a single-stage procedure.
Objectives: We explored whether ethnic differences in type 2 diabetes (T2D) explain ethnic disparities in cognitive impairment.
Design: Longitudinal study.
Setting: A cohort study of multiethnic community-dwelling elderly persons in Northern Manhattan, New York.
Taking the salt-tolerant cotton variety CCRI-44 and salt-sensitive cotton variety Sumian 12 as test materials, a two-year pot experiment was conducted at the Pailou experimental station of Nanjing Agricultural University in 2008 and 2009 to study the relationships of soil electrical conductivity (EC) with the spectral reflectance and hyperspectral indices of cotton functional leaves at different growth stages under five simulated salinity levels (0, 0.35%, 0.60%, 0.
View Article and Find Full Text PDFPurpose: Various surgical methods have been described for the management of lumbar tuberculous spondylitis in the literature. However, there were few reports on the two-stage surgical treatment of lumbar tuberculosis in children of elementary school age. We present a retrospective clinical study of 14 patients with lumbar and lumbosacral tuberculous spondylitis treated by two-stage surgery (first stage: posterior instrumentation; second stage: anterior debridement and allografting).
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