AF系统治疗胸腰椎骨折66例疗效分析

目的:分析AF内固定系统治疗胸腰椎骨折脊髓损伤的疗效。方法:采用AF内固定系统治疗胸腰椎骨析66例,胸椎8例,腰椎58例。其中20例合并不同程度的脊髓损伤,行椎板减压脊髓探查术。结果:被压缩的椎体前缘高度,术后均恢复到90%以上,椎管扩大,术后神经功能恢复较满意。结论:AF内固定系统配合椎板减压是治疗胸腰椎骨析有效方法之一。     

Results of Treating Vertebral Metastases by Percutaneous Vertebroplasty Combined with Interventional Chemotherapy

OBJECTIVE Vertebral metastases are a common manifestation in patients with advanced cancer and treatment is often ineffective. This study was conducted to explore the efficacy of treating vertebral metastases by percutaneous vertebroplasty （PVP） combined with interventional chemotherapy. METHODS Seventy-five patients with vertebral metastases （42 men, 33 women; ages 31-76 years） were divided into 2 groups： 39 cases were treated by PVP combined with chemotherapy （VPCC group）, and 36 cases were treated by PVP alone （VP group）. All procedures were guided by computed tomography （CT） scanning. The results and complications were evaluated by a questionnaire regarding pain and routine follow-up. RESULTS The response rate was significantly higher in the VPCC group than in the VP group （93.0% vs 74.4%, P〈0.05）; total response rates for the VPCC and VP groups were 25.6% and 10.3% respectively. A common complication related to VPCC was transient aggravating pain. CONCLUSION PVP may ameliorate pain, and consolidate the vertebrae of patients with vertebral metastases. Its short-term effect may be enhanced by adding drugs into the bone cement.     

Risk factors for newly developed osteoporotic vertebral compression fractures following treatment for osteoporotic vertebral compression fractures

Background context

It has been reported that newly developed osteoporotic vertebral compression fractures (OVCFs) occur at a relatively high frequency after treatment. While there are many reports on possible risk factors, these have not yet been clearly established.

支架结合弹簧圈治疗破裂椎动脉夹层动脉瘤

目的评估支架结合弹簧圈技术治疗破裂椎动脉夹层动脉瘤（VADA）的可行性、有效性和安全性。方法回顾性分析57例破裂VADA的临床资料,均使用支架结合弹簧圈技术治疗,按使用支架数量分为单支架组（n=32）和多支架组（n=25）,比较两组间即刻和随访的影像学结果及临床结果。结果治疗即刻VADA完全栓塞、近全栓塞和部分栓塞,单支架组分别为4例（12.5%）、7例（21.9%）、21例（65.6%）,多支架组分别为13例（52%）、7例（28%）、5例（20%）。影像学随访12~78个月,单支架组30例,其中VADA完全栓塞19例（63.3%）,显影11例;多支架组24例,其中VADA完全栓塞23例（95.8%）、显影1例。术后即刻与随访期VADA完全栓塞率,多支架组显著高于单支架组（P〈0.05）。死亡3例。改良mRS评分在两组间差异无统计学意义（P〉0.05）。结论长期随访结果显示,支架辅助栓塞治疗破裂椎动脉夹层动脉瘤在技术上是安全有效的,多支架结合弹簧圈栓塞可有效提高即刻及远期的完全栓塞率,降低术后复发及再出血风险。     

The Significance of Calcified Fibrocartilage on the Cortical Endplate of the Translational Sheep Spine Model

To gain an understanding of the vertebral cortical endplate and factors that may affect the ability to achieve skeletal attachment to intervertebral implants and fusion, this study aimed to characterize the hypermineralized tissue on the cortical endplate of the vertebral body on a commonly used animal model. Skeletally mature sheep were injected with tetracycline prior to euthanasia and the C2‐C3, T5‐T6, and L2‐L3 spinal motion segments were excised and prepared. Vertebral tissues were imaged using backscatter electron (BSE) imaging, histology, and tetracycline labeling was used to assess bone remodeling within different tissue layers. It was determined that the hypermineralized tissue layer was calcified fibrocartilage (CFC). No tetracycline labels were identified in the CFC layer, in contrast to single and double labels that were present in the underlying bone, indicating the CFC present on the cortical endplate was not being actively remodeled. The average thickness of the CFC layer was 146.3 ± 70.53 µm in the cervical region, 98.2 ± 40.29 µm in the thoracic region, and 150.89 ± 69.25 µm in the lumbar region. This difference in thickness may be attributed to the regional biomechanical properties of the spine. Results from this investigation indicate the presence of a nonremodeling tissue on the cortical endplate of the vertebral body in sheep spines, which attaches the intervertebral disc to the vertebrae. This tissue, if not removed, would likely prevent successful bony attachment to an intervertebral device in spinal fusion studies and total disc replacement surgeries. Anat Rec, 296:736–744, 2013. © 2013 Wiley Periodicals, Inc.     

Departments

ABSTRACT

Spinal epidural abscess may complicate vertebral osteomyelitis. The purpose of this report is to discuss its course in two patients with sensory/motor and cognitive impairment and to demonstrate the need for its early detection. Delayed detection may lead to spinal cord injury or meningitis. It may also delay functional return and hinder intensive rehabilitation efforts. Two patients are presented.     

彩色多普勒超声诊断锁骨下动脉盗血综合征的临床价值

目的：探讨彩超对锁骨下动脉综合征（SSS）的检查技巧及临床诊断价值。方法选取我院2010年8月-2013年6月间确诊为锁骨下动脉盗血综合征患者53例，进行颈动脉、椎动脉及锁骨下动脉二维超声及彩色多普勒超声检查，分析血流动力学特点。结果53例患者中动脉粥样硬化38例，多发性大动脉炎15例。根据椎动脉频谱特点划分为隐匿型SSS共17例，患侧椎动脉频谱收缩期出现切迹；部分型SSS共26例，患侧椎动脉收缩期血流反向；完全型SSS共10例，患侧椎动脉血流收缩及舒张期均反向。结论彩超对于早期筛查SSS具有明显优势，并可对大多数SSS进行病因学诊断。