scholarly journals Topographic-Anatomical Validation of a New Method for Minimally-Invasive Extra-Cortical Osteosynthesis Using Plastinated Transverse Shoulder Cuts

2020 ◽  
Vol 9 (1) ◽  
pp. 49-55
Author(s):  
A. Yu. Kochish ◽  
D. A. Starchik ◽  
B. A. Maiorov ◽  
I. G. Belen'kii
Keyword(s):  
Peripheral Nerves ◽  
New Method ◽  
Anatomical Structures ◽  
Anatomical Studies ◽  
Metal Implants ◽  
Shoulder Muscle ◽  
Metal Plates ◽  
Transparent Plate ◽  
Long Head ◽  
The Right

The aim of the study was to assess capability and benefits of this method, its technical feasibility and safety regarding a damage of the most essential anatomical structures.Material and methods. The study involved 15 natural humeral bones; their parameters - the length and shape of the plates – were measured for osteosynthesis. Bone osteosynthesis was further performed on 14 intact upper limbs taken from 7 non-fixed corpses of people died at the age of 63–77 using the discussed method; after that, the operated limbs were studied using preparating technique. Furthermore, after plate application on two shoulder sections, 12 transverse cuts with their epoxy plastination were made at three levels according to the original technology; this was followed by the preparation of histotopographic sections.Results. The results obtained have demonstrated that for the new method of bone osteosynthesis it is advisable to use metal plates 220–260 mm long with spiral twisting clockwise for the right humerus and counterclockwise for the left. Average distances from the fixed plate to the humerus, tendon of the long head of the biceps of the shoulder muscle, large blood vessels and peripheral nerves were determined using precision preparation and measurements; the measurements were also performed on transparent plate-shaped shoulder cuts. All the above validates safety of the discussed method regarding a damage of the most essential anatomical structures and allow to successfully use it in the clinical practice.Conclusion. The discussed technique of plastinated transverse shoulder cuts with further experimental fixation of metal implants for osteosynthesis ensures safety of the initial topographic and anatomical relationships of these structures with anatomical structures. In addition, high transparency of the tissues created by epoxy plastination allows determining distances between implants and important anatomical structures with high precision, the fact being of great significance in applied anatomical studies.

Diplomacy Beyond History: Analytic-Violence, Producer-Centred Research, India

2021 ◽  
pp. 097492842098307
Author(s):  
Deep K. Datta-Ray
Keyword(s):  
New Method ◽  
The West ◽  
History Of ◽  
The Right ◽  
Nuclear Diplomacy ◽  
The Cost ◽  
Insight Into

The history of Indian diplomacy conceptualises diplomacy racially—as invented by the West—and restrictively—to offence. This is ‘analytic-violence’ and it explains the berating of Indians for mimicking diplomacy incorrectly or unthinkingly, and the deleting, dismissing, or denigrating, of diplomatic practices contradicting history’s conception. To relieve history from these offences, a new method is presented, ‘Producer-Centred Research’ (PCR). Initiating with abduction, an insight into a problem—in this case Indian diplomacy’s compromised historicisation—PCR solves it by converting history’s racist rationality into ‘rationalities’. The plurality renders rationality one of many, permitting PCR’s searching for rationalities not as a function of rationality but robust practices explicable in producer’s terms. Doing so is exegesis. It reveals India’s nuclear diplomacy as unique, for being organised by defence, not offence. Moreover, offence’s premise of security as exceeding opponent’s hostility renders it chimerical for such a security is, paradoxically, reliant on expanding arsenals. Additionally, doing so is a response to opponents. This fragments sovereignty and abdicates control for one is dependent on opponent’s choices. Defence, however, does not instigate opponents and so really delivers security by minimising arsenals since offence is eschewed. Doing so is not a response to opponents and so maintains sovereignty and retains control by denying others the right to offense. The cost of defence is courage, for instance, choosing to live in the shadow of nuclear annihilation. Exegesis discloses Balakot as a shift from defence to offence, so to relieve the Bharatiya Janata Party’s (BJP) leadership of having to be courageous. The intensity of the intention to discard courage is apparent in the price the BJP paid. This included equating India with Pakistan, permitting it to escalate the conflict, and so imperiling all humanity in a manner beyond history.

Explosive Welding Using Underwater Shock Wave Generated by the Detonation of the Detonating Code

2011 ◽  
Vol 673 ◽  
pp. 265-270 ◽  
Author(s):  
Akihisa Mori ◽  
Li Qun Ruan ◽  
Kazumasa Shiramoto ◽  
Masahiro Fujita
Keyword(s):  
Shock Wave ◽  
Sound Velocity ◽  
Detonation Velocity ◽  
Explosive Welding ◽  
New Method ◽  
Underwater Shock Wave ◽  
Metal Plates ◽  
Experimental Parameters ◽  
Underwater Shock ◽  
Point Velocity

Detonating code is a flexible code with an explosive core. It is used to transmit the ignition of explosives with high detonation velocity in the range of 5.5 to 7 km/s. However, it is difficult to use detonating code for the explosive welding of common metals since the horizontal point velocity usually exceeds the sound velocity. Hence, in the present work, a new method using underwater shock wave generated by the detonation of detonating code was tried. The details of the experimental parameters and the results are presented. From the results it is observed that the above technique is suitable to weld thin metal plates with relatively less explosives.

Simulation and Implementation of HLA-Based Branch Predictor of Multi-Pipeline Processor

2012 ◽  
Vol 204-208 ◽  
pp. 4952-4957
Author(s):  
Ji Hua Ye ◽  
Qi Xie ◽  
Yao Hong Xiahou
Keyword(s):  
Simulation System ◽  
New Method ◽  
High Level Architecture ◽  
Hit Rate ◽  
Branch Predictor ◽  
The Right ◽  
High Level ◽  
Two Sides

Researched how the multi-pipeline processor accelerates the running of thread ,found that when the branch predictor facing the random branch instruction, the hit rate will become very low, so bring out a new method that using the free pipeline to accelerate the running of branch instruction. If the right prediction from branch predictor is less than 70% and there is a free pipeline, then using two pipelines to run the two sides of a branch instruction at the same time. In order to test the new method, the HLA (High Level architecture) architecture-based simulation system is established, the results show that the new method can really reduce the time when processing the random branch instructions.

scholarly journals Post-anaesthetic myelomalacia in a horse : clinical communication

2005 ◽  
Vol 76 (1) ◽  
Author(s):  
K.E. Joubert ◽  
N. Duncan ◽  
S.E. Murray
Keyword(s):  
Peripheral Nerves ◽  
Voluntary Movement ◽  
Rare Complication ◽  
Neurological Complication ◽  
Pain Response ◽  
Sitting Position ◽  
Axonal Swelling ◽  
Clinical Communication ◽  
Muscle Groups ◽  
The Right

This article describes a rare neurological complication of anaesthesia in a 2 year-old Clydesdale colt undergoing castration. Anaesthesia was induced with glyceryl guaiacol ether and ketamine and maintained with halothane. Following an uneventful anaesthetic of 40 minutes, the horse recovered from anaesthesia in a padded recovery stall. After approximately 70 minutes in the recovery stall, the horse attempted to stand and adopted a dog sitting position. One hundred and fifty minutes later, the horse became distressed and was sedated with xylazine. Clinical examination of the horse did not reveal any evidence of myositis or fractures. A neurological examination revealed an intact anal reflex, deep pain response in the hind legs, tail tone and voluntary movement of the hind legs was possible. The horse deteriorated neurologically over the next 24 hours and was euthanased on humane grounds. The horse was submitted for necropsy. Gross pathology was unremarkable except for a small amount of haemorrhage around the right kidney. Histopathology revealed no abnormalities in any muscle groups or peripheral nerves. Congestion and axonal swelling of the spinal cord was evident from T16 to S1. Ischaemic neurons were evident from L 1 to L 6. The most prominent lesions were at L4 and L5. A diagnosis of myelomalacia was made. This is a rare complication of anaesthesia in horses with 9 case studies appearing in the literature since 1979. This is the 1st case to be reported in South Africa. The speculated pathophysiology and risk factors for this complication are discussed.

scholarly journals The Application of Bühlmann‑Straub Model with Data Correction for the Estimation of Net Premium Rates in Bonus‑Malus Systems of the Motor Third Liability Insurance

2018 ◽  
Vol 4 (336) ◽  
pp. 7-22
Author(s):  
Anna Edyta Szymańska
Keyword(s):  
Estimation Method ◽  
Third Party ◽  
Liability Insurance ◽  
New Method ◽  
Insurance Companies ◽  
Data Correction ◽  
Insurance Portfolio ◽  
Premium Rates ◽  
The Right

One of the elements used in the process of tariff calculation of premiums in motor liability insurance is a bonus‑malus system. This systems takes into account the “claims ratio” by means of increases and discounts of the base premium called net premium rates. The aim of this work is to propose an estimation method of the net premium rates in the bonus‑malus classes of the motor third‑party liability insurance portfolio of individuals. The Bühlmann‑Straub model was used for the premium estimation. In order to improve the credibility of the estimated premium rates, a data correction in the classes with premium increase was preformed. An example of the application of the new method is presented based on the data obtained from one of the insurance companies operating on the Polish market, which has reserved the right to stay anonymous.

scholarly journals Ultrasonic Navigation for the Treatment of Medication-Related Jaw Osteonecrosis Involving the Inferior Alveolar Nerve: A Case Report and Protocol Review

2020 ◽  
Vol 3 (4) ◽  
pp. 70
Author(s):  
Gerardo Pellegrino ◽  
Francesca Pavanelli ◽  
Agnese Ferri ◽  
Giuseppe Lizio ◽  
Roberto Parrulli ◽  
...  
Keyword(s):  
Inferior Alveolar Nerve ◽  
Mandibular Canal ◽  
Surgical Removal ◽  
Hard Tissue ◽  
Anatomical Structures ◽  
Osteonecrosis Of The Jaws ◽  
Dynamic Navigation ◽  
The Right ◽  
Ultrasonic Navigation ◽  
Protocol Review

Dynamic navigation (DN) is a computer-guided technique employed in different surgical fields and recently adopted in dental implantology to improve the accuracy of dental implant insertion. Medication-related osteonecrosis of the jaws (MRONJ) often requires the surgical removal of the impaired, hard tissue, trying at the same time to spare the healthy tissue and the noble anatomical structures. A case of extensive bilateral medication-related osteonecrosis, with the symptomatic involvement of the right mandibular canal, was successfully resolved with the use of ultrasonic surgery associated with a dynamic navigation, in order to limit the invasiveness of the surgical approach improving its reliability and accuracy. The usefulness of this technology in the management of MRONJ can be considered in future clinical trials to confirm the advantages and standardize the technique.

Pelvic Schwannoma: Robotic Laparoscopic Resection

2012 ◽  
Vol 72 (1) ◽  
pp. ons2-ons5 ◽  
Author(s):  
Constance Deboudt ◽  
Jean-Jacques Labat ◽  
Thibault Riant ◽  
Olivier Bouchot ◽  
Roger Robert ◽  
...  
Keyword(s):  
Peripheral Nerves ◽  
Benign Tumor ◽  
Laparoscopic Resection ◽  
Resonance Imaging ◽  
Pelvic Nerve ◽  
Neurological Sequelae ◽  
Nerve Sheath ◽  
Rare Benign Tumor ◽  
The Right

Abstract Background: Schwannoma is a rare benign tumor of peripheral nerves arising from Schwann cells of the ubiquitous nerve sheath. Objective: To describe the operative steps and technical aspects of robotic laparoscopic resection of pelvic schwannoma. Methods: We describe 2 patients with pelvic schwannoma: a 34-year-old woman with schwannoma of the right lumbosacral trunk and a 58-year-old woman with schwannoma of a left S1 nerve. Pain was the main symptom in both patients. The diagnosis was confirmed by magnetic resonance imaging and nerve biopsies. Both patients were operated on by robotic laparoscopy. Results: Lesions were totally enucleated after incising the epineurium. After dissection of the schwannoma, the vascular pedicle and nerve fascicles involved were identified, coagulated, and then sectioned. The remaining fascicles of the nerve were preserved. The postoperative course was uneventful in both patients. With follow-up of 9 and 13 months, both patients obtained complete pain relief with no neurological sequelae. Conclusion: Robotic laparoscopic resection of pelvic nerve tumors such as schwannomas is technically feasible.

Multinodular goitre arising in the tracheal lumen: implantation or ectopic?

2011 ◽  
Vol 126 (1) ◽  
pp. 100-102
Author(s):  
R L Love ◽  
F Ahsan ◽  
R Allison ◽  
A Keast ◽  
N Lambie
Keyword(s):  
Thyroid Tissue ◽  
Follicular Adenoma ◽  
Subtotal Thyroidectomy ◽  
Multinodular Goitre ◽  
Tracheal Lumen ◽  
Anatomical Structures ◽  
History Of ◽  
Right Lobe ◽  
Tissue Implantation ◽  
The Right

AbstractObjectives:We report a case of multinodular goitre arising in thyroid tissue within the trachea. This tissue appears to have been implanted at the time of an earlier subtotal thyroidectomy.Case report:A 79-year-old woman presented with a 12-month history of dyspnoea. Forty years earlier, she had been treated for a follicular adenoma with subtotal thyroidectomy. Investigation revealed tumour in the region of the right lobe of the thyroid, extending into and narrowing the trachea. A biopsy was performed, and the patient underwent excision of the right thyroid lobe tumour and cricotracheal resection with anastomosis. Histopathological findings were consistent with a multinodular goitre arising in thyroid tissue within the tracheal lumen.Conclusion:Intra-operative thyroid tissue implantation in the trachea and subsequent goitre development has not previously been described. This case illustrates the need for careful resection of the thyroid in order to maintain the integrity of normal anatomical structures.

Spinal and paraspinal giant cervical cavernous malformation with postpartum presentation

2012 ◽  
Vol 16 (5) ◽  
pp. 447-451 ◽  
Author(s):  
Mark E. Oppenlander ◽  
M. Yashar S. Kalani ◽  
Curtis A. Dickman
Keyword(s):  
Peripheral Nerves ◽  
Cavernous Malformation ◽  
Relevant Literature ◽  
Spinal Fixation ◽  
Nerve Roots ◽  
Cervical Nerve Root ◽  
Cervical Nerve ◽  
Cavernous Malformations ◽  
Intradural Extramedullary ◽  
The Right

Cavernous malformations (CMs) are found throughout the CNS but are relatively uncommon in the spine. In this report, the authors describe a giant CM with the imaging appearance of an aggressive, invasive, expansive tumor in the cervical spine. The intradural extramedullary portion of the tumor originated from a cervical nerve root; histologically, the lesion was identified as an intraneural CM. Most of the tumor extended into the paraspinal tissues. The tumor was also epidural, intraosseous, and osteolytic and had completely encased cervical nerve roots, peripheral nerves, branches of the brachial plexus, and the vertebral artery on the right side. It became symptomatic during the puerperal period. Gross-total resection was achieved using staged operative procedures, complex dural reconstruction, spinal fixation, and fusion. Clinical, radiographic, and histological details, as well as a discussion of the relevant literature, are provided.

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