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Adjacent Level Vertebral Fractures in Patients Operated with Percutaneous Vertebroplasty

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Open Journal of Orthopedics 2018年第3期8卷 116-126页

作者： Dangol Bijendra Xiaotao Wu Zanli Jiang Lei Zhu Maharjan Promish singh ratish Department of Spine Surgery Zhongda Hospital Affiliated to Southeast University Nanjing China

Percutaneous vertebroplasty is a minimally invasive procedure that involves filling of a fractured vertebral body with bone cement to relieve pain and to restore the vertebral height. It is a safe and effective treatment and is widely used for treating Osteoporotic Vertebral Compression Fracture. Despite of its beneficial advantages over primary conservative managements, adjacent level vertebral compression fracture remains the challenge for surgeons. Adjacent level vertebral compression fracture following percutaneous vertebroplasty using PMMA cement has been reported as a complication. Numerous risk factors have been reported for the occurrence of new adjacent VCFs after PVP. The multiple level osteoporotic vertebral compression fractures and the increasing age of the patients are directly proportional to the risk of developing new symptomatic adjacent vertebral compression fracture after PVP. Moreover, low BMD and cement leakage are other factors that directly affect the incidence of new symptomatic adjacent vertebral fractures. The aim of this review is to evaluate the adjacent level vertebral compression fracture following percutaneous vertebroplasty on the basis of radiographs, Kaplan-Meier Estimation index and also the factors that lead to adjacent level vertebral compression fractures.

关键词： Osteoporosis Osteoporotic Vertebral Compression Fracture Percutaneous Vertebroplasty Polymethylmethacrylate Kaplan-Meier Estimation

Percutaneous Endoscopic Lumbar Spine Surgery for Lumbar Disc Herniation and Lumbar Spine Stenosis: Emphasizing on Clinical Outcomes of Transforaminal Technique

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Surgical Science 2018年第2期9卷 63-84页

作者： singh ratish Zeng-Xin Gao Hirachan Mangal Prasad Zhang Pei Dangol Bijendra Depatment of Spine Surgery Zhongda Hospital Affiliated to Southeast University Nanjing China School of Medicine Southeast University Nanjing China

Lumbar Disc Herniation and Lumbar Spine Stenosis are the most common spine diseases which are mainly due to age related Spine degeneration. Diagnosis of both Lumbar Disc Herniation and Lumbar Spine Stenosis depends on clinical findings as well as radiological investigations. Treatment of choice of these conditions is on the basis of the patient conditions. Surgical treatment is the option only when the conservative treatment does not improve the patient’s clinical condition. Advancement and improvement of the technology have resulted in the traditional open surgical treatment into minimal invasive surgery. Intervention of the different surgical instruments with expert spinal surgeons had made percutaneous endoscopic lumbar Spine surgery as one of the preferred choices of surgery for treating Lumbar Disc Herniation and Lumbar Spine Stenosis. The concept of percutaneous endoscopic surgery for lumbar region is to provide surgical options without producing iatrogenic morbidity associated with the open surgical procedures. Conventionally, there are different approaches/techniques for Percutaneous Endoscopic Lumbar Spine Surgery, but in this review we are mainly focusing on the Transforaminal Technique. Regarding the Lumbar Disc Herniation treatment with transforaminal approach, a number of articles have been published due to which we mainly focused on those articles which were published after 2009 onwards. While fewer articles related to Lumbar Spine Stenosis treatment with Transforaminal approach were found, we tried to brief out all those articles. On the basis of comparative study of different surgeries done for Lumbar Disc Herniation and Lumbar Spine Stenosis, Percutaneous Transforaminal endoscopic Lumbar Surgery provides a substantial benefit. Transforaminal approach for treating Lumbar Disc Herniation and Lumbar Spine Stenosis is safe and effective. The Percutaneous Transforaminal Endoscopic Lumbar Surgery has advantage as it is performed under local anesthesia wit

关键词： Lumbar Disc Herniation Lumbar Spine Stenosis Percutaneous Endoscopic Lumbar Surgery Transforaminal Technique Lumbar Spine Decompression

Treatment of Posterior Malleolus Fracture through Posterolateral Approach

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Open Journal of Orthopedics 2019年第4期9卷 67-80页

作者： Sah Ganesh Kumar Jun Lu singh ratish Sinkemani Arjun Karki Sundar Jiming Liang Department of Orthopedic Surgery Zhongda Hospital Affiliated to Southeast University Nanjing China

Posterior malleolus fractures are quite common and usually result from rotational ankle injuries. For the management of posterior malleolus fractures, more studies are still required, though it is already well-recognized for medial and lateral structure. Therefore, fracture of posterior malleolus is striking subject of study among orthopedic surgeons. Most orthopedic surgeons recommend fixing the posterior malleolus fracture if it is larger than 25% to 33% of the distal articular surface. Further attention is required for the reduction and fixation of fractures involving posterior malleolus. Several approaches and methods for fixation of posterior malleolus have been defined in the literature. Previously, the most common method of fixation of the posterior malleolus is by indirect reduction and antero-posterior screws, it is minimally invasive, the anterior incision does not allow satisfactory visualization of the fragment, so good anatomical reduction is difficult to achieve thorough this approach. Operative management goals to reach a stable ankle with maximal function, decrease the risk of post-traumatic degenerative changes, and diminish the risk of complication. Nowadays, posterolateral approach is gaining the popularity due to adequate visualization and accurate anatomic reduction.

关键词： Ankle Fracture Posterior Malleolus Fracture Trimalleolus Fracture Posterolateral Approach

经皮椎间孔镜下腰椎手术治疗腰椎间盘突出和腰椎管狭窄的临床效果

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经皮椎间孔镜下腰椎手术治疗腰椎间盘突出和腰椎管狭窄的临床效果

作者：森格（ratish singh）东南大学

学位级别：硕士

背景:腰椎间盘突出症和腰椎管狭窄症是最常见的年龄相关性脊柱疾病。经皮椎间孔镜下腰椎手术是目前治疗该疾病最新的微创手术方式。目的:探讨经皮椎间孔镜下腰椎手术对腰痛患者的治疗效果,并进一步评价该手术对不同年龄段、不同性别及... 详细信息

背景:腰椎间盘突出症和腰椎管狭窄症是最常见的年龄相关性脊柱疾病。经皮椎间孔镜下腰椎手术是目前治疗该疾病最新的微创手术方式。目的:探讨经皮椎间孔镜下腰椎手术对腰痛患者的治疗效果,并进一步评价该手术对不同年龄段、不同性别及不同诊断的腰痛患者的疗效差异。材料与方法:该回顾性研究共纳入257例2013至2017年于我院行经皮椎间孔镜下腰椎手术的患者,其中腰椎间盘突出症患者206例,腰椎管狭窄症患者51例,在这257例患者中,男性153例,女性104例;年龄≤55岁151例,年龄>55岁106例。平均随访时间为19.78月。结果:入组患者平均手术时间为80.12±23.91分钟,平均住院时间为4.33±1.94天。术前和术后的ODI指数有明显差异(56.27±15.23,8.94±11.06,p0.05);不同年龄段的患者住院时间无显著差异(p>0.05);腰椎间盘突出症与腰椎管狭窄症的患者住院天数无显著区别(p>0.05),同时我们还发现,腰椎间盘突出症和腰椎管狭窄症的患者在术前术后下肢及背部VAS评分、ODI指数上有明显差异(p<0.05);年龄小于55岁与大于55岁人群在手术时间、术前术后下肢及背部VAS评分、ODI指数方面有显著差异(p<0.05),年龄大于55岁人群手术时间更长(p<0.05)。总体来说,大部分接受经皮椎间孔镜下腰椎手术的患者治疗效果满意。结论:经皮椎间孔镜下腰椎手术疗效满意、住院时间短、尤其对于老年患者无需全身麻醉,成为脊柱外科缓解腰背疼痛有效的手术方式。该手术在不同年龄段、不同性别、腰椎间盘突出症和腰椎管狭窄症患者中均有良好的治疗效果。

关键词：经皮椎间孔镜下腰椎手术腰椎间盘突出症腰椎管狭窄症年龄性别

Comparative H2S Sensing Characteristics of Fe2O3: Thin Film vs. Bulk

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Soft Nanoscience Letters 2013年第4期3卷 6-8页

作者： Vishal Balouria Ajay singh Niranjan Suryakant Ramgir Anil Krishan Debnath Aman Mahajan ratish Kumar Bedi Dinesh Kumar Aswal Shiv Kumar Gupta Material Science Laboratory Department of Physics Guru Nanak Dev University Amritsar India. Technical Physics Division Bhabha Atomic Research Center Mumbai India Technical Physics Division Bhabha Atomic Research Center Mumbai India

Comparative investigations of gas sensing characteristics of Fe2O3 in both thin film as well as bulk forms have been performed. Thin film sensors were realized by first depositing Fe films using electron-beam evaporation followed by thermal oxidation. Bulk sensors in the form of pellets were prepared by cold pressing commercial Fe2O3 powder with subsequent sintering. Both thin film and bulk Fe2O3 sensors exhibited a selective and reversible response characteristics towards H2S with maximum response at an operating temperature of 250°C and 200°C, respectively. A negligible response towards other interfering gases was observed. Thin film sensors exhibited an enhanced response in comparison to that of pellets.

关键词： Fe2O3 Thin Film Pellets H2S Sensor