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https://www.readbyqxmd.com/read/28212784/intraspinal-extradural-variations-of-nerve-roots
#1
Viktor Matejčík, Zora Haviarová, Andrej Šteňo, Roman Kuruc, Juraj Šteňo
INTRODUCTION: The aim of this work is to point out the intraspinal extradural anatomical variations of nerve roots and their possible participation in radiculopathy. METHODS: The anatomical study was performed in 33 cadavers at a mean age of 46.5 and up to 24h from death. All extradural anastomoses between nerve roots were excised and examined histologically for the presence or absence of nervous tissue. The type of the plexus was defined by subtracting from the root C2...
February 14, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28210405/titanium-clamps-for-a-simple-low-profile-autologous-osteosynthesis-in-the-reconstruction-of-posttraumatic-craniofacial-convexital-skeletal-disruption
#2
Amos Olufemi Adeleye, Toluyemi Adefolarin Malomo
Attempts at reconstruction of posttraumatic craniofacial defects (PTCDs) can be a challenge in low-resource practice areas of the world where the needed biomaterials are logistically beyond reach. A simple low-profile technique of autologous osteosynthesis for PTCD using the titanium clamps is presented in this report. In addition, a 6-year prospective database on a consecutive cohort of patients who underwent this procedure was analyzed for clinical, functional, and aesthetic outcomes, both in-hospital and at midterm follow-up...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28186447/cranioplasty-with-autogenous-bone-flaps-cryopreserved-in-povidone-iodine-a-long-term-follow-up-study
#3
Jian Zhang, Fei Peng, Zhuang Liu, Jinli Luan, Xingming Liu, Chang Fei, Xueyuan Heng
OBJECTIVE The aim of this study was to investigate the long-term therapeutic efficacy of cranioplasty with autogenous bone flaps cryopreserved in povidone iodine and explore the risk factors for bone resorption. METHODS Clinical data and follow-up results of 188 patients (with 211 bone flaps) who underwent cranioplasty with autogenous bone flaps cryopreserved in povidone-iodine were retrospectively analyzed. Bone flap resorption was classified into 3 types according to CT features, including bone flap thinning (Type I), reduced bone density (Type II), and osteolysis within the flaps (Type III)...
February 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28182825/biosurgical-hemostatic-agents-in-neurosurgical-intracranial-procedures
#4
Roberto Gazzeri, Marcelo Galarza, Giorgio Callovini, Alex Alfieri
Intraoperative hemostasis during neurosurgical procedures is one of the most important aspects of intracranial surgery. Hemostasis is mandatory to keep a clean operative field and to prevent blood loss and postoperative hemorrhage. In neurosurgical practice, biosurgical hemostatic agents have proved to be extremely useful to complete the more classic use of electrocoagulation. During recent years, many biosurgical topical hemostatic agents were created. Although routinely used during neurosurgical procedures, there is still a great deal of confusion concerning optimal use of these products, because of the wide range of products, as absorbable topical agents, antifibrinolytics agents, fibrin sealants and hemostatic matrix, which perform their hemostatic action in different ways...
February 7, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28173987/primary-extradural-malignant-melanoma-of-the-spine-a-case-report
#5
Shingo Yoshizaki, Akihiko Inokuchi, Takahiro Hamada, Kenjiro Nishida, Ryuta Imamura, Hiroyuki Nakahara, Takashi Komatsu, Takeshi Arizono
No abstract text is available yet for this article.
February 4, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28169904/endoscopic-transnasal-transpterygoid-excision-of-an-infratemporal-dermoid-cyst
#6
Gökhan Kuran, Demet Yazici
OBJECTIVE: Intracranial dermoid cysts are rare, slow-growing masses of sellar, parasellar regions, and posterior cranial fossa. The symptomatology of these cysts depends on the localization and presence of rupture. The preoperative diagnosis of these cysts by imagining techniques is distinctive as they have characteristic appearances. PATIENT: Endoscopic transnasal transpterygoid approach to infratemporal fossa for an extradural dermoid cyst of a 24 year-old woman is presented in this clinical report...
February 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28157811/one-stage-surgical-management-for-lumbar-brucella-spondylitis-by-posterior-debridement-autogenous-bone-graft-and-instrumentation-a-case-series-of-24-patients
#7
Yangbin Chen, Jun-Song Yang, Tao Li, Peng Liu, Tuan-Jiang Liu, Li-Min He, Li-Xiong Qian, Ding-Jun Hao
STUDY DESIGN: Clinical case series. OBJECTIVE: To explore the efficacy and safety of one-stage debridement, autogenous bone graft and instrumentation for lumbar brucella spondylitis (LBS) via a posterior approach. SUMMARY OF BACKGROUND DATA: Reports on LBS are sporadic, and the therapeutic effect and safety of surgical interventions have not been assessed in clinical studies. METHODS: Between January 2012 and January 2014, 24 consecutive patients with symptomatic LBS who underwent a one-stage operation that combined debridement, autogenous bone graft and instrumentation via a posterior approach were enrolled...
February 2, 2017: Spine
https://www.readbyqxmd.com/read/28151550/canine-acute-cervical-myelopathy-hydrated-nucleus-pulposus-extrusion-or-intraspinal-discal-cysts
#8
Cristian Falzone
OBJECTIVE: To differentiate between hydrated nucleus pulposus extrusion and ventral intraspinal discal cysts in dogs. STUDY DESIGN: Prospective case series. ANIMALS: Twenty dogs with acute onset of cervical myelopathy due to hydrated nucleus pulposus extrusion or ventral intraspinal discal cysts. METHODS: Clinical and magnetic resonance (MR) imaging findings, outcome after surgical treatment, cytologic and histologic findings of compressive material were taken into account...
February 2, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28128725/unusual-skull-tumors-with-psammomatoid-bodies-a-diagnostic-challenge
#9
Timothy E Richardson, Maria-Magdalena Georgescu, Payal Kapur, Helena Hwang, Samuel L Barnett, Jack M Raisanen, Chunyu Cai, Kimmo J Hatanpaa
AIM: We describe a series of three diagnostically challenging, histologically similar fibro-osseous skull masses. METHODS: The cases were identified in our archives among 50,000 neuropathology specimens. A comprehensive review of the histological, immunohistochemical, ultrastructural, and imaging features as well as the clinical outcome was performed. RESULTS: The routine histology was similar in all 3 cases and showed spindle cell proliferations with frequent calcospheres or psammomatoid bodies...
January 27, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28128694/the-rectus-capitis-lateralis-and-the-condylar-triangle-important-landmarks-in-posterior-and-lateral-approaches-to-the-jugular-foramen
#10
Michael A Cohen, Alexander I Evins, Gennaro Lapadula, Leopold Arko, Philip E Stieg, Antonio Bernardo
OBJECTIVE The rectus capitis lateralis (RCL) is a small posterior cervical muscle that originates from the transverse process of C-1 and inserts onto the jugular process of the occipital bone. The authors describe the RCL and its anatomical relationships, and discuss its utility as a surgical landmark for safe exposure of the jugular foramen in extended or combined skull base approaches. In addition, the condylar triangle is defined as a landmark for localizing the vertebral artery (VA) and occipital condyle...
January 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28127377/synovial-chondromatosis-of-dorsal-spine-case-report-of-rare-pathological-entity-and-review
#11
Raviraj S Ghorpade, Yadhu K Lokanath
Synovial chondromatosis is an uncommon benign condition of metaplastic and focal formation of cartilage in the intimal layer of synovial membrane of joints with extremely low risk of malignant potential. Disease process is typically monoarticular predominantly involving large joints and spinal involvement being a very rare event. We report 31-year-old male patient who presented with history of low backache, left lower limb pain, difficulty in micturition since 8 months and difficulty in walking since 2 months ...
December 2016: Korean Journal of Spine
https://www.readbyqxmd.com/read/28109515/in-reply-to-the-letter-to-the-editor-lentiform-subdural-hematoma-a-rare-mimicker-of-extradural-hematoma
#12
Alex Koziarz, Saleh A Almenawer
No abstract text is available yet for this article.
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28109514/lentiform-subdural-hematoma-a-rare-mimicker-of-extradural-hematoma
#13
G Lakshmi Prasad, Girish R Menon
No abstract text is available yet for this article.
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28104940/percutaneous-epidural-drainage-through-a-burr-hole
#14
Priscila M Falsarella, Rafael D Rocha, Rodrigo G Garcia
Intracranial extradural collection may cause an increase in intracranial pressure, requiring rapid emergency treatment to reduce morbidity and mortality. We described an alternative CT-guided percutaneous access for extradural collection drainage. We report a case of a patient with previous craniectomy for meningioma ressection who presented to the Emergency Department with symptoms of intracranial hypertension. Brains CT showed a extradural collection with subfalcine herniation. After multidisciplinary discussion a CT-guided percutaneous drainage through previous burr hole was performed...
October 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28068277/initial-experience-with-o-arm-navigated-spinal-surgery-report-on-two-cases
#15
Ivo I Kehayov, Christo B Zhelyazkov, Borislav M Kalnev, Atanas N Davarski, Borislav D Kitov, Stefan D Raykov
Image-guided spinal surgery is becoming increasingly popular because it allows surgeons to achieve minimal invasiveness and maximum precision in the performed procedures. We present our initial experience with two cases operated on using O-arm-based spinal navigation at the Clinic of Neurosurgery in St George University Hospital, Plovdiv, Bulgaria. In the first case, we performed removal of extradural spinal tumor of the sixth thoracic vertebra and O-arm-navigated pedicle screw fixation. In the second case, we performed O-arm-navigated corpectomy of the fifth cervical vertebra and anterior spinal reconstruction and fusion with titanium expandable mesh and cervical plate in connection with degenerative narrowing of the cervical spinal canal that lead to clinically manifested myelopathy...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28057591/surgical-management-of-spontaneous-spinal-cerebrospinal-fluid-epidural-fistula
#16
Declan G Siedler, Imogen M Ibbett, Nova B Thani
BACKGROUND: Intracranial hypotension secondary to spontaneous spinal cerebrospinal fluid (CSF) fistula is a rare condition which can have serious sequelae. Early diagnosis and treatment can be challenging. CASE DESCRIPTION: We present a case of a 17-year-old man who presented with a history of sudden onset, postural headaches, associated with upper thoracic back pain. Magnetic Resonance Imaging (MRI) demonstrated a thoracic extradural fluid collection and slumping of the brain within the posterior fossa...
January 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28057401/ruptured-extradural-vertebral-artery-aneurysm-in-a-patient-with-neurofibromatosis-type-1
#17
Chia-Ying Lin, Yu-Hsiang Shih, Ming-Tsung Chuang
No abstract text is available yet for this article.
January 2, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28049115/single-stage-temporomandibular-joint-arthroplasty-in-a-patient-with-complete-bony-ankylosis-and-previous-extradural-haematoma
#18
Emma Brown, Mark H Wilson, Peter Revington
We present a case of a man aged 20 years who was referred with the inability to open his mouth as a consequence of severe ankylosis of his temporomandibular joint. He had previously undergone an attempt to release the ankylosis at the referring institution; however, this was complicated by an extradural haematoma as a result of iatrogenic injury. We describe a one-stage procedure which provided safe excision of the ankylotic mass along with immediate total joint replacement with a custom implant. We advocate the use of preoperative vascular imaging along with the use of custom-made cutting guides to minimise vascular injury...
October 8, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/28049034/hypervascular-lesions-of-the-cerebellopontine-angle-the-relevance-of-angiography-as-a-diagnostic-and-therapeutic-tool-and-the-role-of-stereotactic-radiosurgery-in-management-a-comprehensive-review
#19
REVIEW
Yosef Laviv, Ajith Thomas, Ekkehard M Kasper
The cerebellopontine angle (CPA) is a narrowed skull base area, containing important cranial nerves and vessels and bordering with eloquent areas of the posterior fossa. Tumors of the CPA are a heterogeneous group and can arise extradural, intradural-extraaxial or intraaxial. Accordingly, their vascular supply changes, depending on their anatomical origin. Symptomatic, large CPA tumors require surgical resection in order to prevent irreversible, severe neurological damages. However, its tight and strategical location make surgery in the CPA very challenging and require appropriate pre-surgical planning...
December 31, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28042017/-the-extended-lateral-supraorbital-approach-and-extradural-anterior-clinoidectomy-through-a-fronto-pterio-orbital-window-technical-note-and-pilot-surgical-series
#20
Hugo Andrade-Barazarte, Max Jägersberg, Sirajeddin Belkhair, Rachel Tymianski, Mazda K Turel, Karl Schaller, Juha A Hernesniemi, Michael Tymianski, Ivan Radovanovic
BACKGROUND: Lateral approaches to treat anterior cranial fossa lesions have evolved since the first frontotemporal approach described by Dandy in 1918 OBJECTIVE: To describe a less invasive approach to perform an extradural anterior clinoidectomy (EAC) through a lateral supraorbital approach (LSO) for anterior circulation aneurysms and antero-lateral skull base lesions METHODS: The extended LSO involves performing a standard lateral supraorbital craniotomy, followed by drilling of the sphenoid wing and the lateral wall of the orbit through the frontal bony opening of the LSO without any temporal extension of the craniotomy...
December 29, 2016: World Neurosurgery
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