Monday, May 25, 2020
Outline and assess the main arguments about the need for global governance Essays
Diagram and survey the fundamental contentions about the requirement for worldwide administration Essays Diagram and survey the fundamental contentions about the requirement for worldwide administration Paper Diagram and survey the fundamental contentions about the requirement for worldwide administration Paper Article Topic: Contentions Inside the previous barely any years worldwide administration is a point which has been raised much of the time inside conversations, it has been characterized as another, co-usable, however up 'til now to a great extent unknown method of running world undertakings in light of the progressions purchased by both globalization and quick innovative change. This meaning of worldwide administration is additionally settled upon by Simai (1994) who states it is the upkeep of social request around the world, where there is no world government and duty lays on no on-screen character alone. 1 Regarding the matter there are a wide range of perspectives for the requirement for worldwide administration, yet there are numerous contentions which feature the significance of worldwide administration, one of the primary contentions is that worldwide administration would have the option to control different nations. This is worldwide administration requests that there is guideline which is past the ord inary parameters of the state. This thought has just been placed by and by; instances of this would be the United Nations (UN) and furthermore the world exchange association (WTO). These associations were set up to manage the entirety of their individuals, to speak to the nations which needed help, and furthermore to arrange terms of e. g. exchange which would profit populaces or now and again the entirety of society (the forbidding of CFCs). Latham concurs with this view as he would like to think State governments are excessively wasteful and there is requirement for some level of request which reinforces the contention of the viability of worldwide administration. 2 As worldwide administration would be built up to screen the activities of nations, issues which they would need to examine would be issues, for example, regardless of whether the populaces were getting at any rate their fundamental human rights; the explanation behind this is all inclusive human rights are the premise of social association. Infringement of these are a danger to harmony, and their execution on a worldwide scale is the commitment of the global network. As expressed over the WTO is a genuine case of this as they are a non-prejudicial body whose essential standards are the correspondence of benefits, open markets, privatization, and advancement. 3 This can be viewed as a support of the requirement for administration as though this association was not acquainted nations would be capable with remove both their own populace and furthermore different nations essential human rights, or possibly exploiting another countries circumstance which they may by and by be in. Rather there would be a lot of rules which nations would need to follow, in any case moves could be made, e. . authorizes or even a military takeover. Another point which bolsters the idea of the requirement for worldwide administration is expressed by Reginald Dale who says the contention for worldwide administration is generally basic, the same number of todays issues, for example, wrongdoing infection, contamination and destabilizing capital streams are not restricted to n ational outskirts and along these lines can't be explained by singular governments alone. Despite the fact that singular nations can hurt their neighbors, if not the whole world, for example, by neglecting to control digital wrongdoing, tax evasion or natural calamities. 4 This point expounds the view how co-activity is required from all countries as the innovation in the UK or the USA would be further developed then less created nations, for example, Indonesia, thus the assets of increasingly created nations could help battle sicknesses affecting these populaces. At present less created nations are not accepting the portrayal which they require to help tackle issues or concerns which they may have, as nations, for example, the UK and the USA (thought about rich nations) are disproportionably spoken to when they go to culminations or exchanges on region which concern the worldwide populace. On the off chance that worldwide administration was really presented this would not be the situation, this has different sides however as it implies that however less created nations would present this hypothesis as it would give them greater position, nations, for example, the significant forces would be less ready to surrender their situation of power thus this is one reason why it would be hard for this thought to be executed. The last explanation expounds the reality of the control where these rich nations have on the remainder of them, this is the reason in truth that worldwide administration must be executed as there will be a proportionate measure of portrayal and issues which are affecting the biggest measure of individuals or are assessed as most significant points are placed into the front line of the motivation, generally speaking causing a more attractive and just society. Worldwide administration is coordinated against a lot of worldwide issues. Financial, security, and ecological issues are seen to be in the need of worldwide administration and submitted to worldwide systems and foundations. In this view, the outside of worldwide administration comprises in any protection from the worldwide administration of the individual issue-zones. Since the activities and proportions of worldwide administration are intended to create answers for the issue-territories close by, any powers that may challenge the administration exertion are treated as bothersome disturbances. 5Though this can be viewed as a negative perspective on worldwide administration, the announcement could be likewise found from an alternate perspective. The explanation behind this is however it reveals to us that anything outside worldwide administration is viewed as an opposition, the statement shows us the fundamental standards of worldwide administration and on the off chance that it was presented would help cause a sort of familiar object for the individuals wh o agreed to their guidelines. All through this exposition it has been expressed how worldwide administration would go about as a sort of administrative body observing the activities of the nations, however it would need to screen guidelines, for example, exchange understandings it additionally can screen real pioneers/leaders of nations to ensure they are utilizing their impact and force in the most appropriate manner for the populace which they oversee, thus worldwide administration can help advance human rights and has the ability to add to that objective. This line of reasoning is truly addressing how worldwide administration can help being a limit for the political. This view is taken by Konrad Spath who expresses that worldwide administration happens after the applicable issues are distinguished and the game-plan is chosen. Inside the worldwide administration framework, the sort of issues and the type of arrangements that should control administration are as of now recognized and are hanging tight for usage. Any type of legislative issues should remain outside, in light of the fact that it would subvert the viable activity of the administration framework. Along these lines, administration turns out to be to some degree post-political, in light of the fact that it is something that happens after qualities are picked, objectives are set and political consultations have planned the future way to a superior world. Since political battles and challenges would be counterproductive to the rising agreement of worldwide guideline, administration itself needs to turn into a kind of limit for the political. 6 Taking everything into account, the fundamental contentions for the need of worldwide administration would be that as individual governments can't fathom all issues without anyone else worldwide administration can assist with directing all nations, give insurance for human rights and exchange understandings like that being completed by associations like the World Trade Organization (WTO). Additionally, worldwide administration would be a limit for the political and would enable less created nations to have a greater amount of a contribution to how the world is run, and manners by which they would have the option to improve their populaces way of life. In my perspective I accept that worldwide administration is a significant hypothesis which ought to be considered as there would be numerous advantages for society in the event that it was presented, in principle it would make a more attractive all the more just society which would profit everybody. In spite of the fact that in the light of the contentions it appears that worldwide administration is viewed as a smart thought, yet we dont know whether this would be the situation whenever put by and by, yet the truth will surface eventually as at present we don't have any genuine instances of this hypothesis to contrast and.
AIG Insurance Essay Example | Topics and Well Written Essays - 750 words - 11
AIG Insurance - Essay Example As indicated by the paper notwithstanding the institutional void, the American Insurance Group was the first to increase a permit to work protection items. Despite the fact that the organization needed to persevere through seventeen long a long time in the pause, the advancement came when AIG had just claimed twelve auxiliaries in China permitting it to apply for a protection permit. The gathering approached the Chinese market through its auxiliaries and by getting licenses to sell different protection items in numerous urban areas, AUIG had the option to break into the institutional bereft of the Chinese market. The way wherein AIG custom-made its items to suit the Chinese market was another manner by which the organization guaranteed that its vitally obtained licenses were not squandered away. The institutional void in the Chinese market was filled by AIG as well as later on by the Italian protection goliath as well. Be that as it may, AIG had the advantage of being the first in th e market. The system created by Khanna with respect to key arrangements and arranging of an insurance agency gives set rules that can be embraced by firms entering more current markets. The accentuation of organizations ought to be to create worldwide arrangements and vital gauges in homogenous markets. In any case, the Chinese market was not practically identical to any past market that AIG had worked in â⬠the key was to utilize Khannaââ¬â¢s structure and receive the protection items so as to suit the Chinese market. This examination diagrams that AIG changed its items to suit the Chinese markets by presenting new showcasing methods and advancing its protection items in a manner that spoke to the Chinese populace. Clearly there was no lying on part of AIG, in any case, the accentuation of the showcasing program was to extend the extra security strategies as reserve funds conspires with the goal that the Chinese market would focus on the items. The FSAââ¬â¢s created by AIG in the business sectors gave it the favorable position that it required in the Chinese market.
Sunday, May 24, 2020
Undergraduate Essay Samples
<h1>Undergraduate Essay Samples</h1><p>You will absolutely not be without an undergrad article tests in your example course reading. Each major and subject is probably going to be addressed, for this is the specific room where the understudy must work and verify that each word and every thought is clarified. The best expositions contain as meager filler words as possible.</p><p></p><p>Undergraduates are typically liberated from the weight of rationale, dissecting that something must be or it must not be. Such autonomy and extraordinary separation of thought and dread of rationale to guarantee that the understudy goes into school caught off guard for the rigors of the topic. This powerlessness to consider a scope of thoughts and approaches permits the understudy to be viewed as effectively manipulable and thus vulnerable to peer weight and phony friend approval.</p><p></p><p>Fortunately, those of us who happen to be fre e masterminds have a lot of involvement with managing these realities. By a similar token, understudies are probably not going to have the chance to experience such free scholars. In school they will typically go under the tutelage of somebody who rules, regardless of whether it is their folks or different grown-ups or instructors. Such friend weight will guarantee that understudies discover that they should comply with thoughts of the majority.</p><p></p><p>As far as the thoughts of the school, the understudy is required to retain the principles and guidelines administering the class, notwithstanding tailing them strictly. This will guarantee that any scholarly paper composed by students is pretty much to the enjoying of the coach and the instructor, both of whom are to a great extent keen on keeping the course's scores high.</p><p></p><p>In request to battle this issue, the understudy will need to work inside their capacity. With som e close to home idea and exertion, this is conceivable. The understudy will presumably locate that some undergrad article tests can help the understudy in building up their own thoughts and procedures for composing the most ideal scholarly paper.</p><p></p><p>Students can likewise utilize a large group of scholastic assets and books available to them. A huge choice of undergrad article tests can be found on the web. Furthermore, numerous books and word references will likewise assist understudies with working with new words.</p><p></p><p>For understudies who are required to have a subsequent supposition or even a third, every exertion ought to be made to ensure that the assessments of others are given to others so as to have criticism. Different parts of composing can be tried with an understudy composing different writings, for example, a short story or other piece for scholarly purposes.</p><p></p><p>In end, u ndergrad exposition tests are basic. The understudy should utilize them.</p>
Tuesday, May 19, 2020
Using these four passages and your own knowledge, assess...
The First World War left much of Europe in complete disarray however the USA, having only joined the war in its last year, suffered much less physical and economic damage. There is still debate over whether World War One was the main reason for the boom in America or whether it was due to other factors. Potter is convinced World War One acted as a catalyst for the boom by causing growth in industry, accelerated productivity and the laissez faire attitude of the federal government. Conversely, although Jones acknowledges the war caused some growth in industry and demand he gives more credit to technological advancement and innovation. Gerstle, likewise, gives credit to technological advances but also, similarly to Potter, sees the war asâ⬠¦show more contentâ⬠¦In interpretation B, Jones connotes that the booming economy in the 1920ââ¬â¢s was due to technological innovation and advancement, however in contrast with Cannadine he does give limited credit to the war. Jones argue s that productivity increased ââ¬Å"resulting from technological innovation and the application of ââ¬ËFrederick W. Taylorââ¬â¢sââ¬â¢ theory of scientific managementâ⬠. Scientific management basically increased efficiency in the workplace and ensured employees were working in areas which they could excel in; taking a more scientific approach to production. This contradicts Potter who says maximum productivity was reached because of the strain felt by labour shortages during the war causing workers to be more efficient and therefore produce more. He also uses facts and figures to back up his statements telling us that ââ¬Å"although the population increased by only about 16%..., industrial production almost doubledâ⬠. This supports his view on increased productivity which Gerstle shares as he also mentions that ââ¬Å"productivity and efficiency [were lifted] to new heightsâ⬠during this period. Jones puts a lot of emphasis on technological advancement in cr eating the booming economy, saying electricity consumption more than doubled during the decade mainly due to theShow MoreRelatedUsing the four passages and your own knowledge, assess the view that the impact of the First World War was the main reason for the booming economy in the USA in the 1920ââ¬â¢s1661 Words à |à 7 PagesUsing the four passages and your own knowledge, assess the view that the impact of the First World War was the main reason for the booming economy in the USA in the 1920ââ¬â¢s (40 Marks) I believe that the First World War did not have as much of a significant impact on the American economy as mass production, infact i however see that instead of benefiting the economy the War in fact had the reverse effect to that of which interpretation A and C suggest that the war was the most important factor ofRead MoreModern History.Hsc.2012 Essay25799 Words à |à 104 PagesMODERN HISTORY -2012 Topic one ââ¬â USA 1919-1941 Topic two ââ¬â conflict in the pacific Topic three ââ¬â Douglas MacArthur Topic Four ââ¬â World War I TOPIC ONE ââ¬â USA 1919-1941 USA 1920ââ¬â¢S * the radio age * felt like istory had turned a corner and never going back * stock market * black Thursday November 24 1929 * the jazz age * a speakeasyyyyyyy How significant were the Republican policies in causing the great depression? 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Management http://www.mhhe.com/primis/online/ Copyright à ©2005 by The McGrawâËâHill Companies, Inc. All rights reserved. Printed in the United States of America. Except as permitted under the United States Copyright Act ofRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words à |à 1573 Pagesphotocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to 201-236-3290. Many of the designations by manufacturers and sellers to distinguish their products are claimed as trademarks. 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Wednesday, May 6, 2020
Radiology Spine revised Example For Students
Radiology: Spine revised Cervical Spine AP Open Mouth com/wp-content/uploads/2017/09/cervical-ap.png title=Cervical AP alt=Cervical AP> Cervical AP com/wp-content/uploads/2017/09/cervical-lateral.png title=Cervical Lateral alt=Cervical Lateral> Cervical Lateral Cervical Spine Oblique X-ray com/wp-content/uploads/2017/09/flexion-extension.png title=FLEXION EXTENSION alt=FLEXION EXTENSION> FLEXION EXTENSION Dens Fracture com/wp-content/uploads/2017/09/dens-type-ii-fracture.png title=DENS TYPE II FRACTURE alt=DENS TYPE II FRACTURE> hard to see, thin gray line- L image: should be smooth line from C2 body and dens, instead theres a break at L right arrow- R image: lat. view, can see better DENS TYPE II FRACTURE png title=FLEXION INJURIES alt=FLEXION INJURIES> 1) Anterior subluxation 2) Simple wedge3) Unstable wedge4) Unilateral interfacet dislocation5) Bilateral interfacet dislocation6) Flexion teardrop fracture7) ant atlantoaxial dislocation FLEXION INJURIES Jumped Facets (Facet Dislocation) png title=Jumped Facets (Facet Dislocation) examples alt=Jumped Facets (Facet Dislocation) examples> U/L jumped facet = AKA perched facet dislocation Jumped Facets (Facet Dislocation) examples EXTENSION INJURIES png title=Hangman Fracture alt=Hangman Fracture> *Fx involving both pars interarticularis of C2*Image shows fx at bilat lamina pedicles, and usually anterolisthesis at C2-C3 Hangman Fracture *looking for indirect sign, change in lat. masses of C1 arch and the dens (L lat mass is further from dens)(hard to see on XR > CT) Jefferson Fracture com/wp-content/uploads/2017/09/lumbar-spine-lateral.png title=Lumbar Spine Lateral alt=Lumbar Spine Lateral> IV disc spacesSPPediclesAlignmentVB height Lumbar Spine Lateral -in Lumbar Oblique-Nose = TP Process-Ear = Superior articular facet-Eye = Pedicle-Neck = Pars Interarticularis (look for lucency here)-Front Leg = Inferior articular facet SCOTTY DOG SIGN com/wp-content/uploads/2017/09/scotty-dog-sign-pic.png title=(SCOTTY DOG SIGN pic) alt=(SCOTTY DOG SIGN pic)> Pars Interarticularis #, often assoc. with anterolisthesis> young pts (SCOTTY DOG SIGN pic) png title=Spondylolisthesis grades alt=Spondylolisthesis grades> 1: 0 25% 2: 25 50% 3: 51 75% 4: 76 100% 5 (Spondyloptosis): >100% Spondylolisthesis grades *lumbar pars defect *stress fx from repetitive injury Spondylolysis png title=SPONDYLOSIS (PARS DEFECT) with SPONDYLOLISTHESIS alt=SPONDYLOSIS (PARS DEFECT) with SPONDYLOLISTHESIS> -usually B/L-excess bone-facet jts trying to stabilize themselves SPONDYLOSIS (PARS DEFECT) with SPONDYLOLISTHESIS *FLEXION FRACTURES:*1) *Compression Fracture*: Anterior part of vertebral body breaks/loses height while posterior part of vertebral body is intact. Usually stable.2) *Axial Burst Fracture*: Vertebra loses height along both anteriorly posteriorly*EXTENSION FRACTURES:*1) *Extension/distraction (Chance) fracture*: Vertebra is pulled apart (distracted). (AKA seatbelt #)(ROTATION FRACTURES:)1)Transverse process fracture: Uncommon; from rotation or extreme lateral bending2)Fracture-dislocation Involves bone and/or soft tissue in which vertebra may move off an adjacent vertebra (displaced). Unstable injury. TYPES OF THORACIC AND LUMBAR SPINE FRACTURES AKA Compression -ant VB Wedge Fracture com/wp-content/uploads/2017/09/compression-fracture.png title=COMPRESSION FRACTURE alt=COMPRESSION FRACTURE> magnified view on R- loss of height ant COMPRESSION FRACTURE *Compression injury to ant. vertebral body and transverse # through post. vertebral body Chance Fracture *Vertical disc herniations through the cartilaginous vertebral body endplates > concave endplates (vs. parallel like normal)-can be just inf., just sup., or both-smooth remodeling Schmorls Node png title=AP Sacrum alt=AP Sacrum> -SI Joints-Sacral ALA-Coccyx AP Sacrum -Sacral Coccygeal angle-Cortical Integrity-Pre-Sacral soft tissue Lateral Sacrum png title=SI Joints alt=SI Joints> (normal SI jt.) SI Joints -not at SI jt-most are vertical LEFT SACRAL FRACTURE Evaluation of Bony architecture (limited evaluation of spinal cord and nerve roots) Indications for CT Scan com/wp-content/uploads/2017/09/normal-cervical-spine.png title=Normal Cervical Spine alt=Normal Cervical Spine> saggital view-CT scan: you see more of the bony and soft tissue structures-white: bone-gray: fat, muscles, vessels-black: air Normal Cervical Spine , C1-6 alt=Normal C-Spine Vert., C1-6> axial view- C1: complete ring Normal C-Spine Vert., C1-6 png title=Normal Thoracic Spine alt=Normal Thoracic Spine> saggital view- the worse the scoliosis, the worse the image (you wont see all vert. clearly)- bone soft tissue windows Normal Thoracic Spine alt=Normal Thoracic Spine Vert.> Normal Thoracic Spine Vert. png title=Normal Thoracic Spine Vert. cont. alt=Normal Thoracic Spine Vert. cont. > Normal Thoracic Spine Vert. cont. png title=NORMAL CT LUMBAR SPINE alt=NORMAL CT LUMBAR SPINE> bone window L, ST window R NORMAL CT LUMBAR SPINE > NORMAL CT LUMBAR SPINE Vert. cont. alt=NORMAL CT LUMBAR SPINE Vert. cont.> NORMAL CT LUMBAR SPINE Vert. cont. L5 CONGENITAL PARS DEFECT (xray) com/wp-content/uploads/2017/09/l5-congenital-pars-defect-ct.png title=L5 CONGENITAL PARS DEFECT (CT) alt=L5 CONGENITAL PARS DEFECT (CT)> L: midline (cant see #)Middle: more lateral, start to see defectR: lateral # L5 CONGENITAL PARS DEFECT (CT) alt=L5 CONGENITAL PARS DEFECT CT cont.> axial- much better on CT than xray- facet jts: obliquely oriented defect/lucency- pars articularis: horizontally oriented defect/lucency- spinal canal more flute-like/champagne shape (instead of round) > widening due to ant. slippage that usually goes along w/pars defect L5 CONGENITAL PARS DEFECT CT cont. com/wp-content/uploads/2017/09/l5-burst-fracture.png title=L5 BURST FRACTURE alt=L5 BURST FRACTURE> CT- vert. lost height, lots of # lineslooking for:1) retropulsion of bone (bone fragment extending back into spinal canal)?2) canal stenosis, esp. in thoracic?> MRI imaging L5 BURST FRACTURE com/wp-content/uploads/2017/09/l5-burst-fracture-axial.png title=L5 BURST FRACTURE axial alt=L5 BURST FRACTURE axial> CT, soft-tissue window, bad canal stenoisis L5 BURST FRACTURE axial usually through-and-through #, or just ant. vert. body (rarely just post. vert. body)- this example: some post. retropulsion (were a bit below the conus hopefully, but some folks have conus at L2 > MRI) L1 OSTEOPENIC COMPRESSION FRACTURE flattening of thecal sac > canal stenosis L1 OSTEOPENIC COMPRESSION FRACTURE axial png title=KYPHOSIS (1 mo later) alt=KYPHOSIS (1 mo later)> more loss of vert. height- retropulsion: causing more SC stenosis? Pt may have more Sxs KYPHOSIS (1 mo later) VERTEBRAL AUGMENTATIONFOR TREATMENT OF PAIN RELATED TO COMPRESSION FRACTURES 1) Osteoporosis (most common)2) Direct acute trauma in healthy vertebra3) Neoplasms- Infiltrative neoplasms(eg multiple myeloma, lymphoma)- Metastatic neoplams (eg prostate, breast, lung)- Primary bone neoplasm(hemangiomas, giant cell tumors) Most Common Causes of Vertebral Compression Fractures Conservative Management (if theyre simple #s) for 4-6 wks-initial and gold standard of treatment-medical management with or without methods of immobility-medications (NSAIDS and narcotics) Complications of medications -NSAIDS Gastrointestinal hemorrhage, ulcers-Narcotics constipation, nausea, somnolence, addiction-Most patients with osteoporotic fractures have spontaneous resolution of pain within 4-6 weeks from initial onset, *even without medication!*- vert. augmentation > considered if sig. CIs to pain meds, or are still in sig. pain/compromise to ADL after 6 wks Management of Compression Fracture -Procedures used for palliation of pain related to vertebral compression fractures-Types of Vertebral Augmentation1) Percutaneous Vertebroplasty (PV)2) Balloon-assisted Kyphoplasty-Both involve injection of an acrylic cement under local anesthesia and either fluoroscopic guidance (or, less commonly, CT guidance) to control the pain of vertebral fractures -85-90% patients have rapid pain relief Vertebral Augmentation 1) Pain localized to a fracture or tumor2) Pain refractory to medical management medical management for at least 6-12 weeks3) Fracture less than 12 months old 4) Contraindications to medications or requirement for IV narcotics and hospital admission Vertebral Augmentation pt selection criteria 1) Fracture extending to posterior vertebral cortex retropulsed fragment 2) Cord compression 3) Radiculopathy 4) Fever and/or sepsis 5) Coagulopathy (bleeding disorder) > take-home: conservative tx HAS TO BE DONE 1st!!! Vertebral Augmentation Exclusionary Criteria -Injection of low-viscosity acrylic cement (methylmethacrylate) directly into vertebral body using a unipedicle or bipedicle needles -Typically perfomed in an O/P setting-Objective: treatment of pain (preventing painful motion of vertebral body fragments moving against one another); presence of cement also stabilizes vertebra from suffering another fracture. -DOES NOT RESTORE VERTEBRAL BODY HEIGHT -may be done prophylactically for at-risk vertebra between two other abnormal vertebraetake-home > cement injected, for pain and not height Percutaneous Vertebroplasty Low Complication Rate (1-3.9%) Acute Complications:-Cement leak (symptomatic or asymptomatic) [biggest issue, esp. post. The Disadvantages of Homeschooling vs Traditional Educations Essay 2> similar to last slide Lumbar cont. 2 com/wp-content/uploads/2017/09/modic-changes.png title=MODIC CHANGES alt=MODIC CHANGES> *Type I:* -T1 hypointense (dark) and T2 hyperintense (bright)-Bone marrow edema inflammation*Type II:*-T1 hyperintense and T2 iso/mildly hyperintense (bright spots) -Conversion of normal hemopoietic (red) bone marrow into fatty (yellow) marrow*Type III:* -T1 and T2 hypointense (dark)-Subcondral bone sclerosis MODIC CHANGES *Type I:* -T1 hypointense (dark) and T2 hyperintense (bright)-bright: bone marrow edema inflammation MODIC CHANGES Type I com/wp-content/uploads/2017/09/modic-changes-type-ii.png title=MODIC CHANGES Type II alt=MODIC CHANGES Type II> *Type II:*-T1 hyperintense and T2 iso/mildly hyperintense (bright spots) -Conversion of normal hemopoietic (red) bone marrow into fatty (yellow) marrow MODIC CHANGES Type II *Type III:* -T1 and T2 hypointense (dark)-Subcondral bone sclerosis MODIC CHANGES Type III -Naked bone of outer periphery of vertebral body-Outer fibers of disc (Sharpeys Fibers) anchor themselves into this region -*Bone spurs (osteophytes) arise form this region* as a result of prolonged pulling/tugging of Sharpeys fibers RING APOPHYSIS com/wp-content/uploads/2017/09/disc-anatomy.png title=DISC ANATOMY alt=DISC ANATOMY> Nucleus Pulposus:-*water-rich* gelatinous center of disc-bear axial load of body; pivot point for movt Annulus Fibrosus: -more *fibrous* than nucleus, higher collagen / lower water content-hold in place the highly pressurized nucleus-composed of 15-25 concentric sheets of collagen named LAMELLAE.-outer lamellae = SHARPEYS FIBERS DISC ANATOMY png title=DISC Problems anatomy alt=DISC Problems anatomy> DISC Problems anatomy OSTEOPHYTES MRI png title=MRI CERVICAL DDD Osteophytes alt=MRI CERVICAL DDD Osteophytes> MRI CERVICAL DDD Osteophytes Facets = Synovial Joints-Prone to osteoarthritis-*Osseous overgrowth can results in lateral canal stenosis (neural foraminal stenosis)*-Associated with facet synovial cysts and degenerative disc disease FACET ARTHROPATHY, CT SCAN png title=Facet Arthropathy CT SCAN (cont) alt=Facet Arthropathy CT SCAN (cont)> Axial view (lose the nice hamburger shape, excess bone formation) Facet Arthropathy CT SCAN (cont) *Uncovertebral joints (Luschkas joints)*-formed between uncinate processes above and uncus below-exist from C3 to C7-allow for flexion and extension; limit lateral flexion*Uncovertebral joint hypertrophy*-osteophytes (bone spurs) form in response to degeneration of the spine to try to maintain stability of the spine-can lead to lateral canal (foraminal stenosis) in the cervical spine Uncovertebral Hypertrophy, CT SCAN png title=UNCOVERTEBRAL HYPERTROPHY MRI alt=UNCOVERTEBRAL HYPERTROPHY MRI> UNCOVERTEBRAL HYPERTROPHY MRI Ligamentum Flavum -provides stability and protection to spine-connects the vertebral bodies together-flexible >> normally thicker when standing or leaning back and thinner when sitting or bending forwardHypertrophy/Thickening of the Ligamentum Flavum-natural part of aging process-spine is trying to provide itself with additional support when injury or aging occurs-thickened ligament becomes less flexible and weaker and can encroach on the spinal canal Ligamentum Flavum Thickening, MRI png title=Calcified Ligamentum Flavum CT SCAN alt=Calcified Ligamentum Flavum CT SCAN> Calcified Ligamentum Flavum CT SCAN Normal Abnormal Disc *Radicular pain:*-Pain arising from the spinal root level (vs referred pain from facet joint, SI joint, etc.. )-Sciatica (most common type of radiculopathy)-Burning, stinging /or numbness in buttock, thigh, leg, /or foot; +/- Back pain*Non-radicular pain:* -Pain radiating in a non-dermatomal pattern RADICULOPATHY Specific type of Radiculopathy where pain is caused by impingement/irritation of one of the three lowest lumbar nerve roots (L4, L5 S1) which make up the Sciatic Nerve Treatment is often nonsurgically unless concurrent cauda equina symptoms present or not responding to conservative therapy SCIATICA Normal annulus fibrosus:-Strong and keeps pressurized nucleus pulposus from escaping outwardAnnular Tears/Fissures:-Separations between one of more of the annular lamellae-Avulsion of fibers from the vertebral insertion ANNULAR TEARS (FISSURES) Modified Dallas Discogram Classification Gold Standard = Discography (no longer performed)MRI: can pick up some annular tears, but not all-Will affect nearly 40% of chronic back pain sufferers, but often difficult to diagnose -Contrast MRI better than noncontrast MRI -NonContrast MRI: *T2 hyperintensity along annulus*-Contrast MRI: *lights up granulation tissue in healing/healed annular disc tear* Diagnosis of Annular Tears, MRI png title=ANNULAR TEAR MRI (cont.) alt=ANNULAR TEAR MRI (cont.)> ANNULAR TEAR MRI (cont.) com/wp-content/uploads/2017/09/annular-tear-imaging.png title=ANNULAR TEAR imaging alt=ANNULAR TEAR imaging> ANNULAR TEAR imaging disk disease terminology alt=Degen. disk disease terminology> free fragment, AKA sequestration Degen. disk disease terminology -Displacement of disc material circumferentially (50-100%) beyond edges of ring apophyses-*Not a type of disc herniation* -Types:(1) Symmetrical (2) Asymmetrical DISC BULGE png title=CT L4-L5 DISC BULGE alt=CT L4-L5 DISC BULGE> CT L4-L5 DISC BULGE DISC BULGE image png title=MRI L4-L5 DISC BULGE alt=MRI L4-L5 DISC BULGE> circumferential MRI L4-L5 DISC BULGE -*Localized ( DISC HERNIATION 1) Intravertebral disc herniation (Schmorls node) 2) Protrusion3) Extrusion4) Sequestration TYPES OF DISC HERNIATIONS -Intravertebral disc herniation-Disc extends vertically (up or down) into the vertebral body through a defect in the endplate-Rarely symptomatic SCHMORLS NODES -Greatest distance (in any plane) between edges of disc material beyond disc space is less than distance between edges of disc material at the base in the same plane.-PLL is ALWAYS intact (contained disc herniation)(1) *Focal*: size of protrusion is DISC PROTRUSION DISC PROTRUSION cont DISC PROTRUSIONS imaging -In at least one plane, distance between the edges of the disc material beyond disc space is greater than distance between edges of disc material at the base (Dome of herniation is greater in width than base of herniation) OR-No continuity exists between the herniated disc material and the disc space-*PLL is disrupted (uncontained disc herniation)* DISC EXTRUSION axial DISC EXTRUSION imaging saggital: T1 T2 ONLY- ID neural foramina region (key-hole structures) DISC EXTRUSION imaging (cont) Sequestration-Extruded disc material completely loses continuity with disc spaceMigration-Extruded disc material migrates away from site of extrusion-Can be contiguous or noncontinguous (sequestration) with disc space DISC EXTRUSION (cont) DISC SEQUESTRATION DISC SEQUESTRATION images DISC EXTRUSION W/MIGRATION DISC EXTRUSION W/MIGRATION (cont) Based upon sagittal planes through the axial planeCentral Zone:-Zone between sagittal planes passing through medial edges of each facet (based on Sag Plane)-Zones on either side of center plane:(1) Right central (2) Left centralSubarticular Zone:-Zone between sagittal planes passing though medial edge of facet and medial edge of pedicle Foraminal Zone:-Zone between sagittal planes passing through medial and lateral edges of pedicleExtraforaminal Zone:-Zone beyond sagittal plane passing through lateral edge of pedicle LOCATION OF DISC HERNIATIONS Characteristic pattern of neuromuscular and urogenital symptoms resulting from simultaneous compression of multiple lumbosacral nerve roots below the level of the conus medullaris.Symptoms: Low back pain Sciatica (unilateral or bilateral) Saddle sensory disturbances Bladder and bowel dysfunction Variable lower extremity motor and sensory loss-Immediate referral for MRI or CT-*Surgical Emergency immediate surgical consult needed* Cauda Equina Syndrome shell have an arrow to the issue!
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