bluuebunny/crossref_metadata_2025_split huggingface dataset:
Minimally invasive transpedicular approach for evacuation of epidural abscess and debridement of disc space in a patient with discitis in the thoracic spine
Authors: Tan Lee A. , Takagi Ippei , Deutsch Harel 
Published: July 2013

Spinal epidural abscess (SEA) often requires prompt surgical decompression to prevent potential devastating neurological deficits. Dorsally located SEA usually can be evacuated via simple laminectomies. Ventral SEA often requires an anterior approach such as thoracotomy to achieve adequate exposure and decompression. We report a case of ventral thoracic SEA associated with discitis and osteomyelitis that was successfully treated via minimally invasive transpedicular approach. The patient had immediate and dramatic symptomatic improvement and was ambulatory on post-operative Day 1. The minimally invasive transpedicular approach avoids the surgical morbidity associated with anterior approach and is effective surgical alternative to treat ventral SEA.The video can be found here: http://youtu.be/do-K1VWYhi4.
Minimally invasive lumbar foraminotomy
Authors: Deutsch Harel 
Published: July 2013

Lumbar radiculopathy is a common problem. Nerve root compression can occur at different places along a nerve root's course including in the foramina. Minimal invasive approaches allow easier exposure of the lateral foramina and decompression of the nerve root in the foramina. This video demonstrates a minimally invasive approach to decompress the lumbar nerve root in the foramina with a lateral to medial decompression.The video can be found here: http://youtu.be/jqa61HSpzIA.
Bilateral tubular minimally invasive approach for decompression, reduction and fixation in lumbosacral lythic spondylolisthesis
Authors: Barbagallo Giuseppe M.V. , Certo Francesco , Sciacca Giovanni , Albanese Vincenzo 
Published: July 2013

This video demonstrates the minimally invasive surgical technique used in a 56-year-old woman suffering from L-5 spondylolysis and grade 2 L5–S1 spondylolisthesis. The first author used expandable tubular retractors bilaterally to perform neural decompression, mini-open TLIF, spondylolysthesis reduction and L5–S1 pedicle screw fixation. L-5 cement augmentation was performed through cannulated and fenestrated screws to enhance resistance to screw pull-out secondary to reduction maneuvers.Sequential surgical steps related to microsurgery, spondylolysthesis reduction and instrumentation are shown and commented.We submit that in cases of lythic spondylolisthesis a bilateral traversing and exiting nerve roots decompression is a safer option prior to performing the deformity reduction and fixation; the proposed minimally invasive technique may help in reducing surgical morbidity and improving postoperative recovery.The video can be found here: http://youtu.be/G4Qdg-A-Y3M.
Endoscope-assisted minimally invasive transforaminal thoracic interbody fusion
Authors: Liao Chih-Hsiang , Wu Jau-Ching , Huang Wen-Cheng , Wang Wei-Hsin , Chang Peng-Yuan , Cheng Henrich , Yang-Shih  
Published: July 2013

Surgical treatment of thoracic disc herniation is technically challenging from anterior, lateral or posterior approaches. Because of the deeply located thoracic discs and non-retractable thoracic thecal sac, standard anterior and lateral procedures for discectomy require extensive tissue dissection causing prolonged lengths of stay in hospital. In this video, the authors present a case of calcified disc herniation at the level of T10/11 causing paraplegia and voiding difficulty. The patient was operated on via an endoscope-assisted minimally invasive transforaminal thoracic interbody fusion (EA-TTIF). The herniated disc and calcification were removed through a 26-mm tubular retractor, under microscopes via a unilateral transpedicular approach. The endoscopes were used for direct visualization of the ventral thecal sac and confirmation of complete decompression. After the operation, the patient's neurological function completely recovered. Minimally invasive EA-TTIF is a viable and effective option for the surgical management of thoracic disc herniation. Thoracic interbody fusion can be achieved through a minimally invasive approach from the back.The video can be found here: http://youtu.be/54rRMtvSyCM.
Mini-open posterior approach for adult deformity correction
Authors: Upadhyaya Cheerag , Ziewacs John , Mummaneni Praveen 
Published: July 2013

Minimally invasive surgical (MIS) approaches are gaining popularity in many surgical fields. Potential advantages include reduced blood loss, shorter length of stay, and less soft-tissue trauma. Potential disadvantages include inadequate deformity correction, increased fluoroscopy, longer operative times, and decreased posterolateral fusion surface area exposure.This video demonstrates the key steps in our mini-open transforaminal lumbar interbody fusion (TLIF) using an expandable tubular retractor, placement of cannulated pedicle instrumentation, and subsequent deformity correction. The video demonstrates positioning, surgical opening through a midline incision, a bilateral Wiltse plane tubular approach for the TLIF, placement of bilateral cannulated pedicle screws, and deformity correction.The video can be found here: http://youtu.be/9GH3qsCGX3E.
Intraoperative navigation assisted placement of percutaneous pedicle screws
Authors: Upadhyaya Cheerag D. , Fewel Matthew E. 
Published: July 2013

Minimally invasive surgical (MIS) approaches are gaining popularity in many surgical fields. Potential advantages include reduced blood loss, shorter length of stay, and less soft-tissue trauma. Potential disadvantages include inadequate deformity correction, increased fluoroscopy, longer operative times, and decreased posterolateral fusion surface area exposure.This video demonstrates the key steps in our mini-open transforaminal lumbar interbody fusion (TLIF) using an expandable tubular retractor, placement of cannulated pedicle instrumentation, and subsequent deformity correction. The video demonstrates positioning, surgical opening through a midline incision, a bilateral Wiltse plane tubular approach for the TLIF, placement of bilateral cannulated pedicle screws, and deformity correction.The video can be found here: http://youtu.be/Jj7w4i2DTMQ.
Mini-open lateral retro-pleural thoracic corpectomy for osteomyelitis
Authors: Ahmadian Amir , Uribe Juan S. 
Published: July 2013

Thoracic vertebral body corpectomy with associated deformity and neural element compression can be challenging. Multiple approaches have been proposed including trans-pedicular, costotransversectomy and trans-thoracic. Approach related pitfalls, nuances, morbidity and complication profile differ with each technique. A mini-open retro-pleural approach provides great access to bony pathology and neural elements without the need to violate the thoracic cavity or chest-tube placement postoperatively. Here we present a 56-year-old male with progressive back pain and suspected osteomyelitis/discitis at T-9 & T-10 who presented with progressive deformity and failure of empiric antibiotic treatment. He underwent a two-level lateral corpectomy. The technique and operative nuances to a lateral retro-pleural approach to thoracic corpectomy are presented. Important surgical concepts such as patient positioning, appropriate use of intraoperative fluoroscopy, regional anatomy, postoperative care and pitfalls are outlined. Emphasis is made on a true lateral approach, posterior rib resection, wide retro-pleural dissection and preservation of the parietal pleura as you descent on to the vertebral body. Identifying the correct plane of dissection, timely corpectomy, placement of expandable cage and correction of deformity are discussed. Water-tight closure with removal of retro-pleural air utilizing an intra-operative water-seal technique using a red-rubber catheter is shown.Nuvasive owns the copyright for figures included within the video and has given JNSPG permission to use them.The video can be found here: http://youtu.be/17Xo_u3WHNg.
Minimally invasive palliative resection of lumbar epidural metastasis
Authors: Yew Andrew , Kimball Jon , Pezeshkian Patrick , Lu Daniel C. 
Published: July 2013

Spinal metastatic lesions are the most common tumors encountered by spinal surgeons. As with procedures for degenerative disease, minimally invsive surgery techniques have been applied to minimize muscle and soft tissue destruction in procedures for tumor resection. Here, we present a 23-year-old female with radiculopathy and foot drop secondary to nerve root compression by epidural metastases from Ewing's sarcoma.This patient had a history of previous resection and instrumentation as well as multiple rounds of chemotherapy and radiation that failed to control her disease. The patient presented with three weeks of radicular pain and foot drop that was continuing to worsen at the time of her operation. The decision was therefore made to perform a palliative resection and decompression for relief of her progressive symptoms. In this video, we demonstrate a palliative tumor debulking and nerve root decompression utilizing an MIS approach.The video can be found here: http://youtu.be/tq4kbvKTebI.
Introduction: Minimally Invasive Spine Surgery video supplement
Authors: Mummaneni Praveen V. 
Published: July 2013

This video supplement of Neurosurgery Focus is devoted to minimally invasive spine surgery. Minimally invasive spine surgery has gained popularity amongst patients and physicians over the past decade because it has been shown in select instances to lower blood loss and reduce length of hospital stay for appropriately selected candidates.This supplement includes videos from many of the leaders in the field. Pioneers like Frank LaMarca, Paul Park, Cheerag Upadhyaya, Juan Uribe, and Mike Wang have all sent in videos depicting minimally invasive spinal deformity surgery options. The supplement also includes videos from several different countries, demonstrating how widespread and nuanced minimally invasive spinal procedures have become. Drs. Barbagallo, Certo, Sciacca, and Albanese from Italy; Drs. Gragnaniello and Seex from Australia; and Drs. Liao, Wu, Huang, Wang, Chang, Cheng, and Shih from Taiwan have all sent in nuanced surgical videos that will be of interest to many viewers.I personally enjoyed viewing videos on lumbar degenerative disease surgery depicting unique surgical nuances to treat common problems. Dr. Beejal Amin, Dr. Harel Deutsch, Dr. Daniel Lu, and Dr. Adam Kanter have each submitted videos depicting lumbar decompression and/or fusion for lumbar degenerative stenosis and spondylosis.This supplement also included videos depicting the minimally invasive treatment of uncommon spinal pathologies as well. Videos from Dr. Fred Geisler, Dr. John O'Toole, and Dr. Noel Perin covered topics as varied as sacroiliac joint dysfunction, spinal arteriovenous malformations, and sympathetic chain surgery.I hope that you enjoy this issue of Neurosurgical Focus devoted to videos depicting the surgical nuances of minimally invasive spinal surgery. This video supplement has international appeal, and it has been an honor to be a guest editor on this superb supplement.
A Novel Method for Efficient Micropropagation of Radermachera xylocarpa (Roxb.) K. Schum., a Rare Medicinally Important Forest Species
Authors: Sathe Manjary , Vibhute Megha , Jain Monica , Srivastav Pankaj 
Published: July 2013

Radermachera xylocarpa (Roxb.) K. Schum. is a rare indigenous forest tree species which is utilized for its wood and medicinal properties. Due to its overexploitation and specific habitat requirements the species is restricted to limited areas. In vitro mass propagation of tree species faces various challenges and no such efforts have yet been taken in propagation of this useful plant using these methods. In order to overcome the hurdles and understanding an urgent need of its conservation and mass propagation present authors attempt to develop a simple effective tissue culture protocol for regeneration of R. xylocarpa. Nodal explants were cultured on MS supplemented with various concentrations of cytokinins and auxins. Among different cytokinins, maximum bud induction and proliferation was obtained in media supplemented with Kn along with IBA and for effective root induction which is tough to obtain in tree species, 100% rooting was achieved in cultures with increasing concentrations of IBA. Field survival is a major challenge with regenerated plants of forest tree species. We report here for the first time 100% survival of plants in soil by carefully standardizing the period of hardening and acclimatization procedures. A novel and effective in vitro regeneration protocol of R. xylocarpa has been successfully standardized which can be adopted for large scale propagation, reforestation and conservation of rare Radermachera xylocarpa of medicinal importance.Plant Tissue Cult. & Biotech. 23(1): 21?29, 2013 (June)DOI: http://dx.doi.org/10.3329/ptcb.v23i1.15556
L'économie algérienne — Sa structure, son évolution de 1950 à 1955
Authors: Verrière L. , Olivier Roland 
Published: July 2013

L'Algérie est actuellement l'objet de toutes les préoccupations. Son avenir est largement influencé par sa structure économique et les possibilités de développement de la production. Il a semblé utile de rassembler les principales données statistiques disponibles pour les six dernières années.
L'Algérie est un pays où une économie traditionnelle subsiste aux côtés d'un secteur moderne travaillant même parfois pour l'exportation ; elle est susceptible de progrès économiques considérables. Le relèvement général [du niveau de vie reste cependant en grande partie subordonné au problème démographique.
Rapid staining method to detect and identify downy mildew (Peronospora belbahrii) in basil
Authors: Koroch Adolfina R. , Villani Thomas S. , Pyne Robert M. , Simon James E. 
Published: July 2013

• Premise of the study: Demand for fresh‐market sweet basil continues to increase, but in 2009 a new pathogen emerged, threatening commercial field/greenhouse production and leading to high crop losses. This study describes a simple and effective staining method for rapid microscopic detection of basil downy mildew (Peronospora belbahrii) from leaves of basil (Ocimum basilicum).• Methods and Results: Fresh leaf sections infected with P. belbahrii were placed on a microscope slide, cleared with Visikol™, and stained with iodine solution followed by one drop of 70% sulfuric acid. Cell walls of the pathogen were stained with a distinct coloration, providing a high‐contrast image between the pathogen and plant.• Conclusions: This new staining method can be used successfully to identify downy mildew in basil, which then can significantly reduce its spread if identified early, coupled with mitigation strategies. This technique can facilitate the control of the disease, without expensive and specialized equipment.
Königsberg, microcosme d'histoire prussienne
Authors: Chaline Olivier 
Published: July 2013

Jusqu’aux destructions de 1944, la triple ville de Königsberg, devenue capitale de la Prusse des Teutoniques puis des ducs Hohenzollern, résumait dans sa topographie et ses bâtiments les grands traits de l’histoire de ce territoire des bords sud de la Baltique, à la fois germanique et extérieur au Saint-Empire, inséparable de la Pologne et de la Lituanie.
La force de l'ordre sur écoute
Authors: Truong Fabien 
Published: July 2013

Comment une enquête ethnographique française et une série américaine nous parlent de la police dans les quartiers urbains paupérisés ? Cet article analyse les proximités dans le traitement du métier de policier entre le livre de Didier Fassin et la série télévisée américaine The Wire . Leur construction narrative sous forme de saynètes se prête particulièrement à un usage en classe sous forme d’extraits et permet, au-delà des fantasmes et des préjugés, de comparer la situation française et étatsunienne au prisme des sciences sociales et d’une série télévisée. À noter la publication à l’automne 2013 d’un ouvrage collectif intitulé The Wire , visages du ghetto (La Découverte, coll. « Sciences humaines »).
Purtscher-like Retinopathy in Septicemic Disseminated Intravascular Coagulation Associated with Nephrotic Syndrome
Authors: Viola Francesco , Vezzola Diego , Villani Edoardo , Mapelli Chiara , Barteselli Giulio , Ratiglia Roberto 
Published: July 2013

Purpose To describe a case of severe Purtscher-like retinopathy during an episode of septicemic diffused intravascular coagulation (DIC) in a child with severe nephrotic syndrome. Methods Case report. Results A 5-year-old girl with a history of steroid-sensitive nephrotic syndrome was admitted for worsening symptoms of the systemic disease. Laboratory studies revealed evidence of DIC during an episode of septicemia. Ten days later, she had a sudden and severe bilateral visual loss. Her visual acuity was hand motion in either eye. Fundus examination showed ischemic retinal whitening and retinal hemorrhages. Fluorescein angiography revealed obstruction of arterioles and venules at the posterior pole. Three weeks later, ischemic retinal blanching and hemorrhages resolved in both eyes; visual acuity improved to 20/250 and 20/200 in right and left eye, respectively. No further functional improvement was noted after 3 months, due to diffuse thinning of the inner retina architecture as shown by optical coherence tomography. Conclusions Purtscher-like retinopathy can occur in patients with septicemic DIC and nephrotic syndrome.
Correlation between Cataract Grading by Scheimpflug Imaging and Phaco Time in Phacoemulsification using Peristaltic and Venturi Pumps
Authors: Patrício Maria Sara , Almeida Ana Catarina , Rodrigues Maria Picoto , Guedes Marta Esteves , Ferreira Tiago Bravo 
Published: July 2013

Purpose To study the correlation among cataract grading system by Scheimpflug imaging (Oculus Pentacam® Nucleus Grading System [PNS]), effective phaco time (EPT), and surgical time (ST) using peristaltic and venturi pumps on the Whitestar Signature Phaco System (Abbott Medical Optics, Inc., Santa Ana, California, USA). Methods Patients scheduled to have bimanual microincision phacoemulsification by the same surgeon (T.F.) had Pentacam® Scheimpflug assessment using PNS and were randomly distributed into 2 groups. In group 1, surgery was performed using peristaltic pump, and in group 2, using venturi pump. Parameters assessed in both groups included EPT and ST. Results Sixty eyes that had uneventful clear cornea phacoemulsification with implantation of foldable intraocular lens (IOL) were evaluated, 30 in each group. The EPT was statistically superior with higher nuclear density grades for both groups 1 and 2 (group 1 Spearman R = 0.739, p<0.001; group 2 Spearman R = 0.924, p<0.001). The ST statistically increased with nucleus density for both groups 1 and 2 (group 1 Spearman R = 0.620, p<0.001; group 2 Spearman R = 0.643, p<0.001). Group 2 presented statistically significant reduction on median ST compared with group 1 for nucleus grading 2, 3, 4, and 5. Conclusions The PNS is an objective and reproducible method of grading nuclear cataract density and had a correlation with EPT. Peristaltic and venturi pumps in Signature Phaco System were similar in EPT but venturi pump reduced the median ST in nucleus with higher PNS, without repercussion on complications or anterior chamber stability.
Astigmatism Prevalence and Biometric Analysis in Normal Population
Authors: Nemeth Gabor , Szalai Eszter , Berta Andras , Modis Laszlo 
Published: July 2013

Purpose To analyze the magnitude, orientation, and age-related changes of corneal astigmatism and its correlation with biometric parameters in healthy eyes. Methods Patients over 15 years of age were enrolled in our study. Exclusion criteria were previous ocular surgery, corneal disease, or contact lens wear. Axial length (AL), keratometric readings, and anterior chamber depth (ACD) were assessed using IOLMaster. Results In our study, 1092 eyes were examined. The mean age was 69.64 ± 15.25 years (range 15–100 years). The AL was 23.32 ± 1.49 mm and ACD was 3.17 ± 2.03 mm. Higher AL and ACD values were observed in male patients. The overall astigmatism was 0.89 ± 0.72 D. The magnitude of astigmatism was ≥ 0.5 D in 73.53% of the cases, ≥ 1.0 D in 32.78%, ≥ 1.5 D in 13.55%, and ≥ 2.0 D in 6.86%. In our population, 582 eyes (53.3%) showed with-the-rule astigmatism, 309 (28.3%) against-the-rule, and 201 (18.4%) oblique astigmatism, regardless of sex. Significant against-the-rule astigmatic shift was verified with aging. Significant correlation was found between age and ACD (r = −0.39, p<0.001), age and AL (r = −0.15, p<0.001), and AL and flat (r = −0.54, p<0.001) and steep keratometric readings (r = −0.49, p<0.001). Conclusions In order to obtain adequate refraction results, at the time of cataract surgery distinct attention should be drawn to ophthalmologic biometric parameters, which are continuously changing even in adulthood, and to astigmatism above 1.0 D, present in >32% of the population.
Ophthalmologic Findings in Russian Children with Fetal Alcohol Syndrome
Authors: Gummel Kristina , Ygge Jan 
Published: July 2013

Purpose To study functional and anatomic characteristics of eyes of Russian children with fetal alcohol syndrome (FAS). Methods One hundred children aged 10–16 years from Russian orphanages (St. Petersburg) were examined: 50 with verified diagnosis of FAS and 50 healthy children. All children were tested for distance visual acuity (VA) with subjective optimal correction (Sivtsev chart), skiascopy, visual inspection for FAS external ocular features, biomicroscopy, eye alignment using cover test, and indirect ophthalmoscopy. Results All analyzed parameters were worse in children with FAS compared with controls. Children with FAS showed a higher incidence of amblyopia, hyperopia, astigmatism, and anisometropia. In children with FAS, the incidence of blepharophimosis was 34% (8% in controls), epicanthus 14% (2% in controls), telecanthus 32% (compared to 4% in controls), eyelid ptosis 9% (none in controls), and strabismus 26% (10% in controls). Ophthalmoscopy revealed a tilted optic disc in 5 children with FAS (7%) compared with none in controls. Conclusions Russian children with FAS have a higher incidence of vision problems and eye pathology that needs to be taken into account and requires ophthalmologist monitoring.
Twelve-Month Follow-up of the Artiflex Toric Phakic Intraocular Lens
Authors: Guerin Marc B. , Treacy Maxwell P. , O'Keeffe Michael 
Published: July 2013

Purpose To evaluate the efficacy, safety, refractive predictability, and complications 12 months following the implantation of a foldable toric phakic intraocular lens (PIOL) for the correction of myopic astigmatism. Methods Uncorrected visual acuity (UCVA) and best-corrected distance visual acuity (CDVA), subjective and objective manifest refraction, endothelial cell count (ECC), intraocular pressure, biomicroscopy findings, and patient-reported symptoms were the main parameters recorded pre and post the implantation of an Artiflex toric PIOL. Results Twenty-eight eyes of 19 patients with preoperative myopia ranging from -1.00 D to -12.00 D and with astigmatism ranging from -1.00 D to -5.50 D had the Artiflex toric PIOL inserted to correct refractive error. Postoperatively, all eyes had UCVA of at least 6/12, 94% of at least 6/9, and 58% of at least 6/6. The CDVA improved in 38% of eyes and vision deteriorated by one line in one eye. Postoperative mean refractive spherical equivalent was -0.25 D (range -1.25 D to 0.00 D) with mean astigmatism being -0.60 D (range -1.50 D to 0.00 D). The ECC decreased by a mean of 6.17% (SD 5.63%) at 12 months when compared with the preoperative baseline. Conclusions The Artiflex toric PIOL is an efficacious, predictable, and safe method of treating moderate to high refractive error with astigmatism.