Steven J. Kronowitz, MD, FACS

• Professor
• Department of Plastic Surgery
• University of Texas
• MD Anderson Cancer Center
• Houston, Texas

It should not be given therefore neck pain treatment quick fix discount rizact 10 mg line, unless it is anticipated that it will be used for at least 10 days sports spine pain treatment center hartsdale rizact 10mg purchase free shipping. The organisms most commonly found (90%) is staphylococcus aureus and coagulase negative staphylococci developed due to bacterial contamComponents ination of the catheter hub from the skin pain treatment for arthritis in dogs purchase rizact cheap online. Thrombotic complications include central venous and atrial thrombosis and thromor soyabin oil stabilized by egg-protein pain in testicles treatment rizact 5mg purchase with amex. Fortnightly ­ Vitamin B12 pain treatment center colorado springs rizact 5 mg order mastercard, Zinc, Mn, Related to feeding Regimen (metabolic Complications) Selenium, Copper, Iron, Transferrin. Again it is the common potentially fatal complication · Hypernatremia lipid which is immunosuppressive. This requires a skilled clavian, internal or external jugular vein and and dedicated nursing team, rigid adher- · Deranged liver function and fatty liver is tunneled subcutaneously to minimize the due to excess calorie administration. Part I General Surgery 54 Chapter 8 Endocrine and Metabolic Response to Injury Introduction Systems controlling the response Metabolism after injury Factors determining the magnitude of metabolic response Factors reducing the metabolic response and quick recovery IntroductIon Injury to the body triggers a stress response which comprises alterations in fluids and electrolytes, substrates and hormones. The net effect is to contain and heal the tissue damage and to protect the body while it is injured. The response is remarkably similar whether the trauma is a fracture, burn, sepsis or a planned surgical operation and the extent of the response is usually proportional to the severity of the trauma. Initiation of the response the stress response is initiated by afferent nerve stimulation leading to neuroendocrine response and release of inflammatory mediators and cytokines at the site of injury. Moreover, severe trauma can lead to excessive cytokine release resulting in progressive organ dysfunction with lethal consequences. The control centers for the sympathetic nervous system and the trophic nuclei of the pituitary are located in the hypothalamus. So, stimulation of the latter results in a combined neural and endocrine discharge. A number of inflammatory mediators and peptides known as cytokines are released at the site of injury which modulate the response to injury and give rise to acute phase response. Acute phase response including increased synthesis of acute phase reactant proteins by the liver. Most of the adrenaline comes from the sympathetic nervous system terminals rather than from the adrenal medulla. Cardiovascular effects - Vasoconstriction, increased heart rate (effects) and contractility (effects). Section 1 Cortisol, the catecholamines and glucagon are collectively known as the catabolic or counter-regulatory hormones. Physiological Basis of Surger y plays a small part in increasing blood sugar by stimulating hepatic glycogenolysis and gluconeogenesis. It is also Cortisol released from the posterior Pituitary by pain, a Cortisol is the glucocorticoid secreted from rise in plasma osmolality (via osmoreceptors in the adrenal cortex along with other steroids. Metabolic- It stimulates the conversion hepatic glycogenolysis and gluconeogenesis. Anti-inflammatory- It suppresses the syn- concentration falls because catecholamines thesis of prostaglandins and leukotrienes. In the flow phase, plasma insube reduced or absent (due to previous long- lin rises but blood sugar remains elevated term administration of steroids, adrenalec- because various intracellular changes make tomy or adrenal infarction). It stimustimulates a short-term release of aldoster- lates hepatic ketogenesis and lipolysis in adione from the adrenal cortex but this rise, pose tissue, cortisol prolongs its actions. Their direct effects include promotion of protein synthesis in the liver and muscle and lipolysis of fat stores. Local Effects: Their actions help to contain tissue damage by contributing to the inflammatory reaction through vasodilatation and increased permeability of vessels, migration of neutrophils and monocytes to the wounds, activation of the coagulation and complement cascades and proliferation of endothelial cells and fibroblasts. Systemic Effects: If cytokine production is of glycoprotein secretions (Adhesion mollarge enough systemic effects occur such as ecules) on the endothelial cell surface fever, malaise, headache and myalgia. Endothelins are a family of potent vasoconThe hormone environment is also import- stricting peptides with mainly paracrine ant in hepate protein synthesis. They are released by thrombin, catrequired for acute phase protein synthesis to echolamines, hypoxia and endotoxins. This shunting represents a reprioritization ability of endothelial cells to albumin. The anabolic phase is characterized by increased metabolism, hyperglycemia, lipolysis, negative nitrogen balance, increased heat production and oxygen consumption. The increase in metabolic rate ranges from about 10 percent in elective surgical operations to 50 percent in multiple trauma and 200 percent in major burns. The anabolic phase, on the other hand is characterized by protein and fat synthesis and associated with weight gain. Resting energy expenditure is increased after tissue injury, the degree of increase being proportional to the magnitude of trauma. The muscle and liver glycogen, however, cannot continue to supply glucose all the time, as its total store would be exhausted in a day or two. Protein can also be used as an energy source but it cannot be mobilized beyond a certain level. It is important to spare proteins since their excessive breakdown would lead to muscle wasting, ineffective coughing, impaired wound healing and a diminished synthesis of enzymes. Therefore, the calorie distribution of protein to the fuel mixture of the injured is small and the main energy requirement is met from fat. Physiological Basis of Surger y carbohydrate Metabolism After Injury of triglycerides to fatty acids and glycerol. Fatty acids are burnt in the liver Hyperglycemia occurs immediately after injury to supply energy for gluconeogenesis and because glucose is mobilized from stored gly- in the periphery to supply energy directly. In major injuries, the inflammatory cell infiltrate can account for 70 percent of the Protein Metabolism After Injury glucose uptake. In an uninjured person there is equilibrium between a whole body protein synthesis and Fat Metabolism After Injury whole body protein breakdown. After injury Fat is the main energy source in trauma this balance is disturbed with a net protein and starvation. Chapter 8 Endocrine and Metabolic Response to Injur y perfusion from hypotension secondary to hypovolemia or from the administration of nonsteroidal antiinflammatory drugs also worsens oliguria and can lead to acute renal failure. It does not indicate sodium deficiency, as it occurs at a time when total body sodium is elevated. Serum K+ may rise due to cell death, impaired potassium excretion and liberation of potassium by protein catabolism. However, it is more usual to see increased urine potassium excretion which can lead to overall potassium deficit. Acid-base abnormalities: the commonest change is the metabolic alkalosis due to intense reabsorption of sodium in distal tubules of the kidney, accompanied by excretion of K+ and H+ ions. In more severe injuries, a metabolic acidosis supervenes due to poor tissue perfusion and anaerobic metabolism with accumulation of lactic acid. The protein loss occurs primarily from muscle, there being no decrease in the protein content of the liver and the kidneys. Increased cortisol and glucagon and decreased insulin all limit the ability of muscle to take up amino acids. As catabolism of muscle continues, while anabolism is limited by the hormonal changes, there is a net release of amino acids from muscle cells. Alanine is the principal amino acid released from muscle, and is the principal gluconeogenic precursor in the liver. It has been suggested that a cycle similar to the Cori cycle of glucose to lactate to glucose may be achieved through glucose to alanine to glucose. Most of the proteins, which are largely derived from skeletal muscle, are converted to glucose in the liver by the process of gluconeogenesis. The remainder is used by red blood cells and leukocytes, which convert the glucose to lactate and pyruvate. Inflammatory bowel metabolic response which is a stereotyped further hindering excretion of free water disease, Rheumatoid arthritis, Pacreatic can- reaction to any form of injury leading to alterand resulting in lower volumes of high cer (which augments the metabolic response ations in fluid and electrolytes, substrates, and hormones. Infection means invasion of the body by pathogenic organisms, which may be bacte rial, fungal or viral. A pathogenic organism establishes itself in host tissue, multiplies and results in this sue damage, usually due to release of toxic substances. The classification of microor ganisms into pathogenic and nonpatho genic is, however, arbitrary, as pathogenicity depends on an imbalance in the relation ship between the host and the microorgan ism. In a host with reduced body resistance, a less harmful organism may produce severe disease. Conventional pathogens-They cause infec tions in previously healthy individuals and possess high pathogenicity. Conditional pathogens-Cause clinical infec tion only when a predisposing factor is present. Host Defences Surgical infection occurs when the balance between the host resistance and the virulence of the organism is jeopardized. Conventional Pathogens the following are the examples with their toxins and pathologic lesions: · Lancefield group A and B-Hemolytic streptococci and Staphylococcus aureus exotoxin: wound sepsis, septicemia · Neisseria meningitidis Endotoxin Meningitis · Clostridium tetani Highly toxic exo toxin Tetanus. Chapter 9 Surgical Infections ­ Primary ­ Secondary ­ Tertiary or postoperative peritonitis iv. All the local and systemic host defences may be compromised by surgical interven Prevention of Endogenous Infection tion and treatment. Individual boils that are large and painful should be treated by incision and drainage under local or even general anesthetic. Human Sources these include patients with overt clinical infections, those with inapparent or subclini cal infections as well as carriers and excreters of pathogenic organisms. Organisms may be transmitted from one person to another by direct contact, by inhalation, by sexual inter course or transplacentally. Part I General Surgery soUrce of infection Two types of sources are there: (1) Endogenous source of infection, (2) Exogenous source of infection. Peritonitis carbuncle this is a superficial infective gangrene involv ing the subcutaneous tissue by Staphylococcus aureus. Endogenous infections are particularly common after trauma, sur gery and instrumentation and in conditions of lowered local or systemic host defences. The skin and all mucous membranes bear a rich commensal flora and with the excep tion of the skin, this flora is predominantly anaerobic. Skin-Axilla and perineumanaerobic cocci nose, toe webs, axilla, perineum ­ Staphylococcus aureus. Bacteroides fragilis (Anaerobes), Site Axilla in female and nape of the neck in male are the commonest sites, others sites are back and the shoulder region. If healing is favorable, the slough separates and the cavity gradually fills up with healthy granulation tissue. Pyemic abscess-This is a metastatic abscess due to circulation of pyemic emboli · Treatmentofdiabetesifpresent. Cold abscess - Usually refers to tubercu biotics are given till complete resolution. Unlike pyogenic abscess, pyemic and cold Operation abscesses are nonreacting in nature and do · Operation is to be undertaken when the not show the features of inflammation. All sloughs septicemia are removed with gauge swabs or scis It is a condition where organisms not only sors. The apices of the four skin flaps are circulate in the bloodstream, but also prolif cut making, the opening circular and erate therein and produce toxins which cause large. Increased permeability of vessels espe cially capillaries exudation of protein and fibrin formation pyogenic mem brane. Increased vascular permeability out pouring of macrophages and polymorphs release of lysosomal enzymes lique faction of tissue pus formation. Thus, the end result is production of pus which is composed of dead leuckocytes, bac teria and necrotic tissue. The area around the abscess is encircled by fibrin products and is infiltrated with leu kocytes and bacteria. Irritations by deo dorants and excessive sweating have been implicated as precipitating factors. Organisms causing the infection are Staphylococcus aureus, streptococci and a variety of skin commensals. The patient presents with multiple tender swellings under the arm or in the groin, these enlarge and discharge pus. Toxemia is a state in which toxins bacterial the patient feels ill and complains of throb or chemical circulate in the bloodstream and bing pain at the site. Pyemia the signs are those of acute infection Pyemia is a stage of septicemia in which mentioned above, i. Staphylococcus aureus and their toxins are carried in the bloodstream, which initiate Treatment multiple foci of abscesses in various parts of Incision and drainage (I and D), preferably the body. Pyemic abscess may affect the vis under general anesthesia as local anesthesia cera. On may not act and all the loculi may not be bro the surface, they are the commonest in the ken without causing pain. Clinical Features Pyogenic Abscess It is usually produced by staphylococcal infections. It can also be due to hematogenous spread from a distant focus such as tonsillitis or caries tooth, etc. In acute infection, these clinical features may be accompanied by swinging pyrexia, leukocytosis, raised Creactive protein and Procedure aBscess An abscess is a localized collection of pus. A sinus forceps or finger is introduced within the abscess cavity and all the loculi are broken down.

Palpation of the involved muscles may reveal tight pain treatment medication cheap rizact amex, ropy bands over trigger points pain and injury treatment center discount rizact 10mg amex. Signs of autonomic dysfunction (vasoconstriction or piloerection) in the overlying muscles may be present anterior knee pain treatment purchase discount rizact online. The pain characteristically radiates in a fixed pattern that does not follow dermatomes pain treatment guidelines 2014 generic 5 mg rizact free shipping. Gross trauma or repetitive microtrauma is thought to play a major role in initiating myofascial pain syndromes pain treatment and research rizact 5 mg overnight delivery. Trigger points develop following acute injury; stimulation of these active trigger points produces pain, and the ensuing muscle spasm sustains the pain. When the acute episode subsides, the trigger points become latent (tender, but not pain producing) only to be reactivated at a later time by subsequent stress. The diagnosis of a myofascial pain syndrome is suggested by the character of the pain and by palpation of discrete trigger points that reproduce it. Common syndromes produce trigger points in the levator scapulae, masseter, quadratus lumborum, and gluteus medius muscles. The latter two syndromes produce low back pain and should be considered in all patients with back pain; moreover, gluteal trigger points can mimic S1 radiculopathy. Treatment of fibromyalgia includes cardiovascular conditioning, strength training, improving sleep hygiene, cognitive­behavioral therapy, patient education, and pharmacotherapy. Lumbosacral strain, degenerative disc disease, and myofascial syndromes are the most common causes. Low back pain, with or without associated leg pain, may also have congenital, traumatic, degenerative, inflammatory, infectious, metabolic, psychological, and neoplastic causes. Paravertebral Muscle & Lumbosacral Joint Sprain/Strain Approximately 80­90% of low back pain is due to sprain or strain associated with lifting heavy objects, falls, or sudden abnormal movements of the spine. The term sprain is generally used when the pain is related to a well-defined acute injury, whereas strain is used when the pain is more chronic and is likely related to repetitive minor injuries. Injury to paravertebral muscles and ligaments results in reflex muscle spasm, which may or may not be associated with trigger points. The pain is usually dull and aching, and occasionally radiates down the buttocks or hips. It is one of the largest joints in the body and functions to transfer weight from the upper body to the lower extremities. Pain originating from this joint is characteristically located along the posterior ilium and radiates down the hips and posterior thigh to the knees. The diagnosis is suggested by tenderness on palpation, particularly on the medial aspect of the posterior superior iliac spine, and by compression of the joints. Pain relief following injection of the joint with local anesthetic (3 mL) is diagnostic and may also be therapeutic. For potentially longer duration of analgesia, radiofrequency ablation may be performed at the dorsal ramus of L5 as well as the lateral branches of the S1, S2, and S3 nerves if the patient responded well to local anesthetic injections of the sacroiliac joint or to diagnostic injections of these nerves. Applied Anatomy of the Back the back can be described in terms of anterior and posterior elements. The anterior elements consist of cylindrical vertebral bodies interconnected by intervertebral discs and supported by anterior and posterior longitudinal ligaments. The posterior elements are bony arches extending from each vertebral body, consisting of two pedicles, two transverse processes, two laminae, and a spinous process. The transverse and spinous processes provide points of attachment for the muscles that move and protect the spinal column. Spinal structures are innervated by the sinuvertebral branches and posterior rami of spinal nerves. The sinuvertebral nerve arises before each spinal nerve divides into anterior and posterior rami, and reenters the intervertebral foramen to innervate the posterior longitudinal ligament, the posterior annulus fibrosus, periosteum, dura, and epidural vessels. Each facet joint is innervated by the medial branch of the posterior primary rami of the spinal nerves above and below the joint. As lumbar spinal nerve roots exit the dural sac, they travel down 1­2 cm laterally before exiting through their respective intervertebral foramina; thus, for example, the L5 nerve root leaves the dural sac at the level of the L4­L5 disc (where it is more likely to be compressed) but leaves the spinal canal beneath the L5 pedicle opposite the L5­S1 disc. Buttock Pain Buttock pain may be due to several different factors, and can be quite debilitating. Coccydynia (or, coccygodynia) may the result of trauma to the coccyx or surrounding ligaments. It may resolve by means of physical therapy, coccygeal nerve blocks to the lateral aspects of the coccyx, or ablative or neuromodulatory techniques. Injection of local anesthetic into the belly of this muscle or into trigger points located at the origin and insertion of the muscle may help relieve the pain. Degenerative Disc Disease Intervertebral discs bear at least one third of the weight of the spinal column. Their central portion, the nucleus pulposus, is composed of gelatinous material early in life. This material degenerates and becomes fibrotic with advancing age and following trauma. The nucleus pulposus is ringed by the annulus fibrosus, which is thinnest posteriorly and bounded superiorly and inferiorly by cartilaginous plates. Disc (discogenic) pain may be due to one of two major mechanisms: (1) protrusion or extrusion of the nucleus pulposus posteriorly or (2) loss of disc height, resulting in the reactive formation of bony spurs (osteophytes) from the rims of the vertebral bodies above and below the disc. Degenerative disc disease most commonly affects the lumbar spine because it is subjected to the greatest motion and because the posterior longitudinal ligament is thinnest at L2­L5. Factors such as increased body weight and cigarette smoking may play a role in the development of lumbar disc disease. In patients with persistent axial low back pain, the history and physical examination may provide clues. If the patient has pain when sitting or standing, or maintaining a certain position for an extended period of time, there may be an element of discogenic pain. It the pain produced with injection is similar to that which the patient experiences on a daily basis, it is deemed concordant pain. In some circumstances, the pressure in the disc following injection is not significantly higher than the opening pressure. This may be due to the presence of a fissure in the disc that tracks to the epidural space. Risks of discography include infection and discitis, which may be difficult to treat because the disc is relatively avascular. Treatment options for discogenic pain include conservative therapy, steroid injections into the disc, intradiscal biacplasty, involving heating the posterior annulus of the disc by way of radiofrequency ablation, and surgical fusion with bone graft or hardware placement; each has shown mixed degrees of success. The evaluation and treatment of discogenic pain is an area of significant controversy and ongoing research. Herniated (Prolapsed) Intervertebral Disc Weakness and degeneration of the annulus fibrosus and posterior longitudinal ligament can cause herniation of the nucleus pulposus posteriorly into the 12 spinal canal. Disc herniations usually occur posterolaterally and often result in compression of adjacent nerve roots, producing pain that radiates along that dermatome (radiculopathy). Sciatica describes pain along the sciatic nerve due to compression of the lower lumbar nerve roots. When disc material is extruded through the annulus fibrosus and posterior longitudinal ligament, free fragments can become wedged in the spinal canal or the intervertebral foramina. Less commonly a large disc bulges or large fragments extrude posteriorly, compressing the cauda equina in the dural sac; in these instances patients can experience bilateral pain, urinary retention, or, less commonly, fecal incontinence. Pain associated with disc disease is aggravated by bending, lifting, prolonged sitting, or anything that increases intraabdominal pressure, such as sneezing, coughing, or straining. Disk Level L3­L4 (L4 Nerve) Pain distribution Anterolateral thigh, anteromedial calf to the ankle L4­L5 (L5 Nerve) Lateral thigh, anterolateral calf, medial dorsum of foot, especially between the first and second toes L5­S1 (S1 Nerve) Gluteal region, posterior thigh, posterolateral calf, lateral dorsum and undersurface of the foot, particularly between fourth and fifth toes Plantar flexion of foot Ankle Weakness Reflex affected Quadriceps femoris Knee Dorsiflexion of the foot None of radiculopathy (Table 47­9). Bulging of the disc through the posterior longitudinal ligament can also produce low back pain that radiates to the hips or buttocks. With the patient supine and the knee fully extended, the leg on the affected side is raised and the angle at which the pain develops is noted; dorsiflexion of the ankle with the leg raised typically exacerbates the pain by further stretching the lumbosacral plexus. Pain while raising the contralateral leg is an even more reliable sign of nerve compression. Imaging studies and further tests should be acquired when severe or progressive neurological deficits are present, or when serious underlying conditions are suspected. Discography may be considered when the pain pattern does not match the clinical findings. A centrally herniated disc will usually cause pain at the lower level, and a laterally protruded disc will cause pain at the same level as the disc. For example, a centrally located disc herniation at L4­L5 may compress the L5 nerve root whereas a laterally located disc herniation at this level may compress the L4 nerve root. The natural course of herniated disc disorders is generally benign and the duration of pain is usually less than 2 months. Over 75% of patients treated nonsurgically, even those with radiculopathy, have complete or near-complete pain relief. The goals of treatment should therefore be to alleviate the pain and rehabilitate the patient to return to a functional quality of life. After the acute symptoms subside, the patient can be referred to a physical therapist for instruction on exercises to improve lower back health. Patients who smoke tobacco should be advised to stop smoking, not only for the obvious health benefits but also because nicotine further compromises blood flow to the relatively avascular intervertebral disc. Percutaneous disc decompression involving extraction of a small amount of nucleus pulposus may help to decompress the nerve root. For patients with acute-onset weakness correlating with the level of the disc herniation, surgical management should be considered. When symptoms persist beyond 3 months, the pain may be considered chronic and may require a multidisciplinary approach. Of note, back supports should be discouraged because they may weaken paraspinal muscles. Degeneration of the nucleus pulposus reduces disc height and leads to osteophyte formation (spondylosis) at the endplates of adjoining vertebral bodies. In conjunction with facet joint hypertrophy and with ligamentum flavum hypertrophy and calcification, this process leads to progressive narrowing of the neural foramina and spinal canal. Extensive osteophyte formation may compress mul13 tiple nerve roots and cause bilateral pain. It is characteristically worse with exercise and relieved by rest, particularly sitting with the spine flexed (the "shopping cart sign"). The terms pseudoclaudication and neurogenic claudication are used to describe such pain that develops with prolonged standing or ambulation. Electromyography and nerve conduction studies may be useful in evaluating neurological compromise. Patients with mild to moderate stenosis and radicular symptoms may obtain benefit from epidural steroid injections via a transforaminal, interlaminar, or caudal approach. The diagnosis may be confirmed if pain relief is obtained following intraarticular injection of local anesthetic solution into affected joints or by blockade of the medial branch of the posterior division (ramus) of the spinal nerves that innervate them. Long-term studies suggest that medial branch nerve blocks are more effective than facet joint injections. Medial branch rhizotomy may provide long-term analgesia for patients with facet joint disease. Cervical Pain Although most spine-related pain due to disc disease, spinal stenosis, or degenerative changes in the zygapophyseal joints is felt in the low back and lower extremities, patients may have cervical pain attributed to these processes. A key anatomic difference is that the cervical nerve roots, unlike those in the thoracic and lumbar spine, exit the foramina above the vertebral bodies for which they are named. This occurs until the level of C7, where the extra cervical nerve roots, C8, exit below the pedicles of C7, thus transitioning to the nomenclature of the thoracic- and lumbar-level vertebral bodies and nerve root denominations. The clinical examination may help to identify the nerve root that is affected with confirmation by a selective nerve root block. Risks inherent with percutaneous cervical procedures include accidental intravascular injection of local anesthetic or steroid. Particulate steroid injections in the neck have been associated with devastating outcomes such as spinal cord injury and death and should be avoided. For primarily axial pain in the neck with extension into the head or to the shoulders, cervical medial branch blocks may clarify the diagnosis. Long-term analgesia may be obtained with radiofrequency ablation of the medial branches innervating the zygapophyseal joints. Facet Syndrome Degenerative changes in the facet (zygapophyseal) joints may also produce back pain. Congenital Abnormalities Congenital abnormalities of the back are often asymptomatic and remain occult for many years. Relatively common anomalies include sacralization of L5 (the vertebral body is fused to the sacrum), lumbarization of S1 (it functions as a sixth lumbar vertebra), spondylolysis (a disruption of the pars interarticularis), spondylolisthesis (displacement anteriorly of one vertebral body on the next due to disruption of the posterior elements, usually the pars), and spondyloptosis (subluxation of one vertebral body on another resulting in one body in front of the next). Spinal fusion may be necessary in patients with progressive symptoms and spinal instability. Urgent surgical intervention is indicated when the patient also suffers from acute weakness. It typically presents as low back pain associated with early morning stiffness in a young patient, usually male. After a few months to years, the pain gradually intensifies and is associated with progressively restricted movement of the spine. Diagnosis may be difficult early in the disease, but radiographic evidence of sacroiliitis is usually present. As the disease progresses, the spine develops a characteristic "bamboo-like" radiographic appearance. Some patients develop arthritis of the hips and shoulders, as well as extraarticular inflammatory manifestations.

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As the nerve exits the orbit through the infraorbital foramen pain treatment who purchase cheap rizact line, it gives off sensory branches to the lower eyelid pain treatment for trigeminal neuralgia cheap rizact 5 mg otc, lateral nares knee pain treatment guidelines purchase rizact 5mg amex, and upper lip pain management from shingles 10 mg rizact purchase free shipping. The superior alveolar nerve ankle pain treatment physiotherapy discount rizact 5 mg without a prescription, a branch of the infraorbital nerve, innervates the upper incisor, canine, and the associated gingiva. Description of the Procedure the patient is placed in supine or seated position and is advised to report any paresthesia during the procedure along the distribution of the nerve. A 25-gauge, 1½-inch needle is introduced at the level of the notch and is advanced medially 15° to avoid entering the foramen. If the needle slips accidently into the foramen, it should be withdrawn and redirected medially. After negative aspiration is confirmed, 2­3 ml of the solution is injected in a fanlike distribution. Meanwhile, a gauze sponge should be used to apply gentle pressure on the lower eyelid and infraorbital tissues before, during, and after injecting the. Inferior Alveolar Nerve Block Indications Inferior alveolar nerve block is a useful tool in the diagnosis and management of painful conditions in areas supplied by the inferior alveolar nerve, including posttraumatic neuralgias and pain secondary to intraoral malignancies. Clinical Anatomy the inferior alveolar nerve originates from the mandibular nerve to enter the mandibular canal. The inferior alveolar nerve courses through the body of the mandible to provide sensation to the molars, premolars, as well as associated gingiva. The mental branch comes out through the foramen to provide sensation to the lower lip and the associated gingival surface. Description of the Procedure Ultrasound Technique the patient is placed in supine or seated position. After prepping the skin with antiseptic solution, a high-resolution linear probe is situated along the zygomatic bone in a transverse or oblique orientation. The needle is then placed inferior to the probe and advanced in an out-of-plane technique toward the infraorbital foramen. Topical anesthesia in the form of 10 % cocaine or 2 % viscous lidocaine can be applied via cotton-tipped applicator. After ensuring adequate topical anesthesia, needle is advanced in the submucosa along the inner surface of the mandible. The nerve emerges from the mandible through the mental foramen at the level of the second premolar; it then turns sharply and gives off sensory branches to the medial side of the chin. Description of the Procedure Extraoral Approach the patient is placed in supine or seated position and is advised to report any paresthesia along the distribution of the nerve. A 25-gauge, 1½-inch needle is introduced at the level of the foramen and advanced medially 15° to avoid entering the foramen. After negative aspiration is confirmed, 2­3 ml of the solution is injected in a fanlike distribution [4, 5]. The lower lip is retracted down, and cotton balls soaked in 10 % cocaine solution or viscous 2 % lidocaine are placed in the alveolar sulcus close to the mental notch for adequate topical anesthesia of the mucosa. A 25-gauge, 1½-inch needle is advanced toward the mental foramen, which may elicit paresthesia. After negative aspiration is confirmed, 2­3 ml of the solution is injected in a fanlike manner. After prepping the skin with antiseptic solution, a high-resolution linear probe is situated along the lower border of the mandible in a transverse orientation. The needle is then placed superior to the probe and advanced in an out-ofplane technique toward the mental foramen. The auriculotemporal nerve runs cephalad through the parotid gland, passing between the temporomandibular joint and external auditory meatus, where it gives off branches that provide sensation to the temporomandibular joint, portions of the ear pinna, and the external auditory meatus. The auriculotemporal nerve accompanies the temporal artery as it ascends over the zygomatic arch to provide sensation to the temporal region and the lateral scalp. Description of the Procedure Auriculotemporal Nerve Block Indications Auriculotemporal nerve block is a useful tool in the diagnosis and treatment of painful conditions secondary to auriculotemporal entrapment neuropathy or injury [1, 2]: · Posttraumatic neuralgia · Atypical facial pain the patient is placed in supine or seated position with the head in the neutral position. The patient should be advised to report any paresthesia along the distribution of the nerve during the procedure. The temporal artery pulsations are palpated at a point just above the origin of the zygoma. The needle is then redirected in a cephalad trajec- 3 Peripheral Nerve Block for the Management of Headache and Face Pain 25. After prepping the skin with antiseptic solution, a high-frequency linear probe is situated just above the origin of the zygomatic process. The temporal artery is visualized as pulsating structure and confirmed by color Doppler. The needle is then placed superior to the probe and advanced in an out-of-plane technique toward the nerve away from the temporal vessels. Curving around the sternocleidomastoid muscle, the greater auricular nerve becomes more superficial and gives off branches to provide sensation to the ear, external auditory canal, angle of the jaw, and portion of the skin overlying the parotid gland. Description of the Procedure · the patient is placed in supine or lateral position, with the neck slightly flexed, and is advised to report any paresthesia along the distribution of the nerve during the procedure. After negative aspiration is confirmed, 3­5 ml of the solution is injected in a fanlike fashion [10, 11]. Greater Auricular Nerve Block Indications Greater auricular nerve block is a useful tool in the diagnosis and management of painful areas supplied by the greater auricular nerve including greater auricular neuralgia and pain due to herpes zoster [1, 2]. Clinical Anatomy Ultrasound Technique the greater auricular nerve originates from the primary ventral ramus of the second and third cervical nerves. The the patient is placed in supine or lateral position, with the neck slightly flexed. The needle is placed at the superior end of the probe and advanced in an out-of-plane technique toward the nerve. After negative aspiration is confirmed, 3­5 ml of the solution is then injected to surround the nerve. Although it is rare, early detection is imperative to prevent deleterious fatal consequences. The mental nerve block is vulnerable to blunt trauma due to the acute angle as it emerges out of the mental foramen. Dosage requirements for local and general (minimum alveolar concentration) anesthetics are reduced. Administration of a given volume of epidural local anesthetic tends to result in more extensive spread in elderly patients. Diseaserelated changes and wide variations among individuals in similar populations prevent convenient generalizations. In Europe, persons aged 65 years or older are expected to comprise 30% of the population within the next 40 years. Decreased ability to increase heart rate in response to hypovolemia, hypotension, or hypoxia Decreased lung compliance Decreased arterial oxygen tension Impaired ability to cough Decreased renal tubular function Increased susceptibility to hypothermia vexing problems. Their management should be closely coordinated between the surgeon, cardiologist, and anesthesiologist. Still, it is important to distinguish between changes in physiology that normally accompany aging and the pathophysiology of diseases common in the geriatric population (Table 43­2). For example, atherosclerosis is pathological-it is not present in healthy elderly patients. On the other hand, a reduction in arterial elasticity caused by fibrosis of the media is part of the normal aging process. Changes in the cardiovascular system that accompany aging include decreased vascular and myocardial compliance and autonomic responsiveness. Elderly patients with systolic murmurs should be 1 suspected of having aortic stenosis. However, in the absence of co-existing disease, resting systolic cardiac function seems to be preserved, even in octogenarians. Increased vagal tone and decreased sensitivity of adrenergic receptors lead to a decline in heart rate; maximal heart rate declines by approximately one beat per minute per year of age over 50. Fibrosis of the conduction system and loss of sinoatrial node cells increase the incidence of dysrhythmias, particularly atrial fibrillation and flutter. Preoperative risk assessment and evaluation of the patient with cardiac disease were previously reviewed in this text (see Chapters 18, 20, & 21). Age per se does not mandate any particular battery of tests or evaluative tools, although there is a long tradition of routinely requesting tests such as 12-lead electrocardiography in addition to the acute surgical illness. Age is not a contraindication to anesthesia and surgery; however, perioperative morbidity and mortality are greater in elderly than younger surgical patients. As with pediatric patients, optimal anesthetic management of geriatric patients depends upon an understanding of the normal changes in physiology, anatomy, and response to pharmacological agents that accompany aging. In fact, there are many similarities between elderly and pediatric patients (Table 43­1). Individual genetic polymorphisms and lifestyle choices can modulate the inflammatory response, which contributes to the development of many systemic diseases. The relatively high frequency of serious physiological abnormalities in elderly patients demands a particularly careful preoperative evaluation. Because elderly patients frequently take multiple drugs for multiple conditions, they often benefit from an evaluation before the day of surgery, even when scheduled for outpatient surgery. Preoperative laboratory studies should be guided by patient condition and history. Nonetheless, elderly individuals are more likely to present for surgery with previously undetected conditions that require an intervention, such as arrhythmias, congestive heart failure, or myocardial ischemia. Cardiovascular evaluation should be guided by American Heart Association guidelines. Diastolic dysfunction prevents the ventricle from relaxing and consequently inhibits diastolic ventricular filling at relatively low pressures. In some patients, systolic ventricular function can be well preserved; however, the patient can have signs of congestion secondary to severe diastolic dysfunction. Marked diastolic dysfunction may be seen with systemic hypertension, coronary artery disease, cardiomyopathies, and valvular heart disease, particularly aortic stenosis. Diastolic dysfunction results in relatively large increases in ventricular end-diastolic pressure, with small changes of left ventricular volume; the atrial contribution to ventricular filling becomes even more important than in younger patients. The elderly patient with diastolic dysfunction may poorly tolerate perioperative fluid administration, resulting in elevated left ventricular end-diastolic pressure and pulmonary congestion. This Doppler study reflects the velocity of blood as it fills the left ventricle early in diastole. B: In tissue Doppler, the velocity of the movement of the lateral annulus of the mitral valve is measured. Like infants, elderly patients have less ability to respond to hypovolemia, hypotension, or hypoxia with an increase in heart rate. Ultimately, cardiovascular diseases, including heart failure, stroke, arrhythmias, and hypertension contribute to an increased risk of morbidity, mortality, increased cost of care, and frailty in elderly patients. Research is ongoing into the relationship between telomere biology and cardiovascular disease. Indeed, telomere length varies among humans based upon inheritance and environmental factors. Telomere shortening may be either a cause or a consequence of cardiovascular disease. Whatever the exact mechanism of cardiovascular aging, patient management should at all times be in accordance with American Heart Association/American College of Cardiology guidelines. Airway collapse increases residual volume and closing capacity Even in normal persons, closing capacity exceeds functional residual capacity at age 45 years in the supine position and age 65 years in the sitting position. When this happens, some airways close during part of normal tidal breathing, resulting in a mismatch of ventilation and perfusion. The additive effect of these emphysema-like changes decreases arterial oxygen tension by an average rate of 0. Decreased respiratory muscle function/mass, a less compliant chest wall, and intrinsic changes in lung function can increase the work of breathing and make it more difficult for elderly patients to muster a respiratory reserve in settings of acute illness (eg, infection). Measures to prevent perioperative hypoxia in elderly patients include a longer preoxygenation period prior to induction, increased inspired oxygen concentrations during anesthesia, positive end-expiratory pressure, and pulmonary toilet. Aspiration pneumonia is a common and potentially life-threatening complication in elderly patients, possibly as a consequence of a progressive decrease in protective laryngeal reflexes and immunocompetence with age. Ventilatory impairment in the recovery room is more common in elderly than younger patients. Factors associated with an increased risk of postoperative pulmonary complications include age older than 64 years, chronic obstructive pulmonary disease, sleep apnea, malnutrition, and abdominal or thoracic surgical incisions. The neuroendocrine response to stress seems to be largely preserved, or, at most, only slightly 5 decreased in healthy elderly patients. Renal function, as determined by glomerular filtration rate and creatinine clearance, is reduced (Table 43­2). The serum creatinine level is unchanged because of a decrease in muscle mass and creatinine production, whereas blood urea nitrogen gradually + 6 increases with aging. Impairment of Na handling, concentrating ability, and diluting capacity predispose elderly patients to both dehydration and fluid overload. The combination of reduced renal blood flow and decreased nephron mass in elderly patients increases the risk of acute renal failure in the postoperative period, particularly when they are exposed to nephrotoxic drugs and techniques. The decreased capacity to handle water and electrolyte loads makes proper fluid management more critical; elderly patients are more predisposed to developing hypokalemia and hyperkalemia. This is further complicated by the common use of diuretics in the elderly population. The search is ongoing for drugs that might protect the kidney perioperatively, as well as for specific genetic profiles of patients at greater risk of perioperative kidney injury. After reaching peak weight at about age 60 years, most men and women begin losing weight; the average elderly man and woman weigh less than their younger counterparts. Heat production decreases, heat loss increases, and hypothalamic temperature-regulating centers may reset at a lower level.

Among various hereditary forms with different penetrance marianjoy integrative pain treatment center purchase rizact once a day, there are 3­10% of true monogenic forms with a complete penetrance of a mutant gene urmc pain treatment center sawgrass drive rochester ny rizact 10 mg order with amex, and another gain a complete penetrance by the age of 60­65 advanced diagnostic pain treatment center ct rizact 10 mg purchase otc. On autopsy over the counter pain treatment for dogs buy generic rizact on line, microscopy usually reveals diffuse cerebral atrophy with predominant involvement of the parietal and the occipital lobes prescription pain medication for shingles 5mg rizact purchase fast delivery. The typical microscopic features are extracellular amyloid plaques with green fluorescence on confocal microscopy dyed with Congo red (beta-amyloid and a peptide fragment of alpha-synuclein) and neurofibrillary tangles in the degenerating neurons. Neuronal loss and destruction of synapses with glial proliferation around the amyloid plaques are seen along with solitary or numerous Lewy bodies. Targeted study of temporal lobes in coronal planes reveal asymmetrical atrophy of hippocampi. The dilatation of the temporal horns of the lateral ventricles and the parahippocampal fissures are observed 1082 Chapter 14 with cortical thickening, dilatation of Bisha fissure bilaterally and the temporal horns of the lateral ventricles (Scott et al. Atrophy of the parietal and the occipital lobes is also revealed with dilatation of their external subarachnoidal spaces. On rare occasions, the disease is familial: hereditary (familial) cerebral haemorrhage. The disease is characterised by amyloid deposits in the walls of small, usually cortical and leptomeningeal arteries with thinning and further rupture of their walls. In contrast to haemorrhages in arterial hypertension, multiple small haemorrhages in the subcortical brain areas with relative preservation of basal ganglia are typical for amyloid angiopathy. Small petechial haemorrhages are better visualised on T2 gradient echo images as hypointense areas due to influence of haemosiderin deposits. However, solitary and large haemorrhages may be found, in particular, deep-seated ones. Cerebral transthyretin-associated amyloidoses are caused by rare mutations of the transthyretin gene (on chromosome 18q11. Clinical picture is characterised by variable age of onset (17­80 years), by different neurological symptoms (progressive dementia, spastic pareses. Along with cerebral atrophy with dilatation of the external subarachnoid spaces and the lateral ventricles (a,b) multiple foci of small haemorrhages in the chronic stage are seen as areas of hypointense signal on 2-weighted imaging (c). The disease often remains unrecognised during throughout life, and patients are usually being followedup with other diagnosis. Neuroimaging diagnosis is nonspecific and has no differences from features of cerebral amyloid angiopathy. In addition, superficial and parenchymal haemosiderosis as a result of old haemorrhages of different "age". Several prion diseases in animals are known: scrapie in sheep, bovine spongiform encephalopathy, deer-emaciating diseases, etc. The prevalence of relatively recently described human prion diseases (beginning in the 19070s) is about 1 case per 1 million; however, it increases yearly. The disease is characterised by subacute cortical dementia with rapid cognitive decline, generalised seizures, and myoclonus, and parkinsonism syndrome. The average survival is 6 months; less frequently the disease may progress for several years, and death ensues after complete decortication and coma. Fatal familial insomnia is characterised by impairment of sleep­wake cycle and several autonomic signs, which indicates damage of reticular formation of the brainstem. The prion protein was inoculated in cases of this disease, which may also be familial or sporadic. Kuru, the first prion disease described in humans, was discovered in Papua New Guinea native inhabitants, who consumed human brains. Largely, in all prion diseases atrophy of cerebral hemispheres, decrease of brain volume and weight are seen. It is important that in most transmissive cases, the prion protein is found in peripheral lymphatic tissues, which makes possible the alive diagnosis of a prion disease basing on histology of a puncture material of lymphatic nodes (Illarioshkin 2003). Later these changes expand onto putamina and heads of caudate nuclei (Gertz et al. In 83% of cases, hyperintense signal is noted in the peri-aqueductal grey matter of midbrain, most frequently in familial fatal insomnia. Total demyelination of the white matter of cerebral hemispheres is sometimes seen. However, no specific changes have been revealed by these techniques, but they are slightly more sensitive to pathological changes in the brain, which reflect the course of neurodegeneration. Diseases that are members of this group have different molecular genetic aetiology and pathogenesis, different age of onset, but they have common clinical and pathological findings. For all of these diseases, the leading syndrome is cerebellar ataxia with other cerebellar signs present to this or that extent (nystagmus, dysarthria, megalographia) as well as pyramidal signs and motosensory polyneuropathy. Pathologically, all these diseases are characterised by degeneration of posterior and lateral columns of the spinal cord, dentate nuclei and vermis, cerebellar peduncles and olives, in several forms-atrophy of the cerebellar cortex, brainstem nuclei, spinal motor neurons, and demyelination of the cerebellar white matter and ascending and descending pathways of posterior and lateral columns of the spinal cord. The mutant gene characterised by complete penetrance is mapped on chromosome 4p16. Two cases Neurodegenerative Disorders of the Central Nervous System 1085 not known. The inhibitory input of striatum on the external segment of globus pallidus occurs with activation of ascending thalamocortical pathways and development of choreic hyperkinesis. In the late stages, neurons of the "direct" striopallidar pathway are lost with disinhibition of the internal segment of globus pallidus and chorea is replaced by akinetic rigidity syndrome. The classic triad of signs in the clinical picture includes choreic hyperkinesis, subcortical type dementia, and behavioural changes (Illarioshkin 2003). Clinical manifestations depend on the stage of the disease and the neurodegenerative process (see above) in corpus striatum (chorea on the initial stage is replaced by akinetic rigidity syndrome in the late stage). Pathologically, atrophy of basal ganglia and to a less extent of cerebral cortex is seen, and external and internal hydrocephalus and decrease of brain weight are also noted. Specific histological signs are loss of spike-like neurons of corpus striatum (putamen and caudate nucleus), as well as of medial pert of caudal nucleus since the earliest stage of the disease, which contains amyloid aggregates of the polyglutamine protein huntington. It is known that all basal ganglia in 50% of cases consists of internal white matter. On the other hand, foci of hypointense signal within them point out on iron deposits (Scott et al. Pigmental degeneration of retina with mental retardation and optic nerve atrophy g. Adrenomyeloneuropathy Spastic, complicated paraplegias are very rare, and their nosological distinction is not yet proven; the genes of most forms are not mapped. Variants of isolated hereditary spastic paraplegia are caused by mutations in several genes mapped to different chromosomal loci, in particular, autosomal dominant forms (Westphal-Strümpell disease)-to loci 2p, 8q, 12q, 14q, 15q, and 19q. That may point out a crucial role of impairment of oxidative phosphorylation in the pathogenesis of this disease, and probably the entire group of diseases. Isolated hereditary spastic paraplegia is distinguished, in which 70% of cases correspond to the classical description of German neurologist A. Complicated forms of the disease involve various forms of hereditary spastic paraplegia. The latter are the most heterogeneous and many of them are now related to other groups of disorders- enzymopathies, mitochondrial disorders, etc. In the late stages, corticospinal tracts at the level of brainstem may be involved, with partial, probably, secondary, neuronal loss of Betz cells of cerebral hemispheres. Brain examination usually reveals no pathological signal changes or signs of atrophy. The aetiology of sporadic cases is still unexplored, but they are probably linked with different molecular genetic defects that are not elucidated yet. Infrequently the disease starts with an extremity that underwent mechanical or electrical injury long ago. Depending on the predominant localisation of the process, four clinical forms are distinguished: cervicothoracic, lumbosacral, bulbar, and high. The course of the disease could be diffuse or there could be predominance of signs of upper or pyramidal motor neurons involvement. Paresis of skeletal and bulbar muscles, amyotrophies, fasciculations, and spasticity develop. Survival rarely exceeds 5 years, and death comes due to weakness of respiratory muscles (diaphragm) due to loss of spinal motor neurons and loss of neurons in brainstem that control respiration. Microscopy reveals significant degeneration of anterior horn motor neurons, typically more prominent at the level of cervical enlargement with predominant loss of alpha-motor neurons. Identical features are seen in brainstem motor nuclei with relative preservation of oculomotor, trochlear and abducens nerves. In addition, degen- eration of motor neurons in the anterior central gyrus and adjacent areas of the frontal lobes are seen. The loss of white matter that corresponds to axons of these motor neurons is also found (corticospinal tracts on all their way to spinal and bulbar motor neurons). Possibly a part of fibres degenerate secondarily by a dying-back mechanism due to degeneration of spinal motor neurons, and not due to loss of upper motor neurons in the motor cortex. Electronic microscopy reveals axonal spheroids that contain neurofilament-like structures in the degenerating motor neurons. A spinal cord study is also nonspecific even with high quality of imaging equipment. Decreased diameter of the spinal cord with absence of typical lumbar and cervical enlargements may be present. The changes are more prominent in centrum semiovale more ventrally to "terminal areas", which have. In the late stages of the disease, changes of the corticospinal tracts may be seen at the level of pons and medulla. Atrophy of the anterior central gyri with enlargement of the central sulcus may also be found. In these cases, detection of the spinal cord compression at the level of cervical enlargement (listhesis, disc herniation, spondylosis, etc. Linear posthaemorrhagic cyst in the posterior portions of the left frontal lobe is observed (a­c). Taupathies Progressive supranuclear palsy Frontotemporal dementia Neuroimaging features 1091 Iron deposits in substantia nigra Typical changes in the lower brainstem and cerebellum Corticobasal degeneration 3. Hereditary spastic paraplegias Cavitation of tectum and tegmentum of midbrain Marked atrophy of the frontotemporal regions with thinning of gyri and dilatation of the anterior and temporal horns of the lateral ventricles. Decreased cerebral blood flow and metabolism in these regions Diffuse asymmetrical cerebral atrophy. Decreased cerebral blood flow and metabolism in these regions Predominant lesions of hippocampi Multiple small and large parenchymal and subarachnoidal haemorrhages Predominant involvement of basal ganglia. Variable neuroimaging picture Specific changes in brainstem, medulla, atrophy of the cerebella peduncles Involvement of caudate nucleus and putamen. Dilatation of the anterior horns of the lateral ventricles Mild changes or normal picture of the white matter in centrum semiovale. Neurology 43:697­700 Bahn M, Kido D, Lin W, Pearlman A (1997) Brain magnetic resonance diffusion abnormalities in Creutzfeldt-Jakob disease. Neurology 43:2065­2068 Demaerel P, Baert A, Vanopdenbosch L et al (1997) Diffusionweighted magnetic resonance imaging in Creutzfeldt-Jakob disease. Neurology 38:1481­1482 Gibb W, Luthert P, Marsden C (1990) Clinical and pathological features of corticobasal degeneration. Neurology 45:1138­1143 1092 Hauser R, Olanow C (1994) Magnetic resonance imaging of neurodegenerative diseases. Yanus-K, Moscow, p 248 (in Russian) Jahno N, Shtulman D (2001) [Diseases of nervous system: the management for doctors in two volumes. Neurology 37:439­445 Kretzschmar H, Ironside J, DeArmond S, Tateishi J (1996) Diagnostic criteria for sporadic Creutzfeldt-Jakob disease. Arch Neurol 53:913­920 Kruger H, Meesmann C, Rohrbach E et al (1990) Panencephalopathic type of Creutzfeldt-Jakob disease with primary extensive involvement of white matter. Radiology 172:179­182 Mazumdar A, Mukherjee P, Miller J et al (2003) Diffusion-weighted imaging of acute corticospinal tract injury preceding Wallerian degeneration in the maturing human brain. N Engl J Med 317:1571­1581 Rebeiz J, Kolodny E, Richardson E (1968) Corticodentatonigral degeneration with neuronal achromasia. Arch Neurol 18:20­33 Chapter 14 Riley D, Lang A, Lewis M et al (1990) Cortical-basal ganglionic degeneration. J Neurol Sci 146:103­108 Scott W et al (2002) Magnetic resonance imaging of the brain and spine, 3rd edn. Arch Neurol 10:333­359 Stuss D (1993) Assessment of neuropsychological dysfunction in frontal lobe degeneration. Dementia 4:220­225 Valk J, Barkhof F, Scheltens P (2003) Magnetic resonance in dementia. No To Shinkei 45:1033­1038 Will R, Zeidler M, Stewart G et al (2000) Diagnosis of new variant Creutzfeldt-Jakob disease. Ann Neurol 47:575­582 Yakhno N, Shtulman D (2001) [Diseases of the nervous system. Specific Features of the Spine and Spinal Cord in Children Congenital Spinal Pathology. For many years, myelography (first applied in 1923) has been considered one of the principal imaging modalities for diagnosis of spinal pathology. This permitted, on the one hand, reducing the rate of complications and, on the other hand, significantly improving the quality of primary diagnosis of spinal cord lesions. It is mainly used for extramedullary tumours (Aubin 1979; Post 1980; Haughton 1982). And as a reflection of this process, an appearance of a number of monographs devoted to use of this modality in neurosurgery and neurology surfaced (Brant-Zawadzki 1987; Valk 1987; Haughton 1988; Stark and Bradley 1988; Manelfe 1989). One of them is usually used for studying the cervical or craniovertebral spine while the other (its flat form), for any segment of the spinal column. Its application in thoracic or lumbar spine imaging resulted in outcomes more favourable. Its unique feature is that it is constructed of small-size radiofrequency coils (six and more).

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