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Spinal Glossary, Back Pain Glossary, Herniated Disc, Lower Back Pain, Degenerative Disc Disease, Chronic Pain Relief, Maldynia, Pinched Nerve, Spondylolisthesis, Heat Therapy, Spinal Stenosis, Osteoporosis, Pinched Nerve, Spine, Spondylolysis, Facet Joints, Heat Treat Backpack System

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Glossary



A B C D E F G H I L M N O P R S T V Z

 

A


Adult Scoliosis: The lateral curvature of the spine, which occurs after skeletal maturity.

Algology: The science and study of pain phenomena.

Allodynia: The sensation of pain triggered by a stimulus to the skin that is normally not painful (e.g., lightly touching a sunburn).

Analgesia: Absence or decreased pain response to stimulation that would normally be painful.

Analgesic: Medicine used to relieve pain.

Anesthesia: Absence or partial loss of sensation.

Anesthetic: An agent (or agents) that reversibly produce anesthesia.

Angiogram: An x-ray of blood vessels leading to and in the brain, which can be seen due to the injecting of a dye or contrast substance through a catheter placed in the artery in the leg.

Angiography: Radiography of blood vessels using the injection of material opaque to x-rays to give better definition to the vessels

Annulus Fibrosis: The outer, fibrous, ring-like portion of an intervertebral disc that contains the Nucleus Pulposus (semi-gelatinous portion of the disc) . The annulus fibrosis is constructed of several fairly strong 'bands' or 'rings' of tissue, with the outmost rings containing many nerves. It is for this reason that damage to these outmost rings can be a source of pain by itself. Some people have equated the annulus fibrosis to the 'radial tire' portion of the disc.

Anterior Cervical Discectomy and Fusion:  The cervical spine is reached through a small incision in the front of the neck. The intervertebral disc is removed and replaced with a small plug of bone, which in time will fuse the vertebrae.

Anterior Cervical Discectomy: An operation where a small incision is made in the front of your neck so that the cervical spine can be reached so that the soft tissues of the neck can be separated, and the intervertebral disc and/or bone spurs can be removed.

Anterior Lumbar Interbody Fusion: Operation where the lumbar spine is approached through an incision in the abdomen. A portion of the affected disc space is removed from the spine and replaced with an implant.

Anterior Spinal Fusion: Approaching the spine from the front, the vertebral body the and or the intervertable disc is removed and a bone graft is inserted.

Anterior: Front of the body or situated nearer the front of the body. It is often used to indicate the position of one structure relative to another. The opposite of posterior.

Anti-inflammatory:  A medicine that reduces inflammation.

Apical Vertebra: The vertebra that deviates the most from the patient's vertical axis; the most rotated vertebra in a curve.

Atherosclerosis:  Macrophages eat low density lipoproteins and migrate into lesions in the internal layer of arteries. The smoot muscle cells fill with fats and cholesterol and die. Platelet clots (thrombi) tend to form on the irrigular surfaces. Heart attacks occur when the Coronary Arteries (serving the heart muscle) are blocked by fatty plaque and/or platel closts. The muscle issues become starved for oxygen and nutrients (Ischemia)

Articular: Pertaining to a joint.

Athralgia: Pain in or affecting a joint.

Autogenous Bone: Bone originating from the same individual (an individual's own bone).
 

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B

Baastrup d. (kissing spine) : False joint formed by wide posterior spinous processes of the lumbar spine. This may become a source of pain.

Backbone: See Spine.
 
Back Pain: Nonspecific term used to describe pain below the cervical spine.

Bactericidal: Causing the death of bacteria.

Bacteriostatic: Inhibiting or retarding the growth of bacteria.

Banks-Dervin Rod: For scoliosis fixation; a multiple level rod that is fixed with oblique spinous process to contralateral lamina screws.

Bell's Palsy: Paralysis of facial muscles (usually one side) due to facial nerve dysfunction of unknown cause.

Benign: Not cancerous; does not invade nearby tissue or spread to other parts of the body.

Bioabsorbable Polymer: A substance, such as some plastics, which the human body can break down and absorb.

Biocompatibility: A characteristic of some materials that when they are inserted into the body do not produce a significant rejection or immune response.

Biodegradation: The breakdown of organic materials into simple chemicals commonly found in the body.

 Biopsy: Removal of a small portion of tissue, usually for the purpose of making a diagnosis.

Blood-Brain-Barrier: The barrier which exists between the blood and the cerebrospinal fluid which prevents the passage of various substances from the bloodstream to the brain.

BMP-Like Products: Proteins that enhance mineralization, which can increase bone formation.

Bohman: Posterior triple spinous process wiring technique in the cervical spine to secure bone graft.

Bone: The hard tissue that provides structural support to the body. It is primarily composed of hydroxyapatite crystals and collagen. Individual bones may be classed as long, short, or flat.

Bone Derivative: One of the substances extracted from bone, such as bone morphogenic proteins (BMP).

Bone Graft: Bone which is harvested from one location in an individual and placed in another individual (allograft bone) or in a different location in the same individual (autogenous bone).

Bone Harvesting: The removal of bone for transplantation to another site. The most common sources are the iliac crests because these bones contain a large amount of cancellous bone, the inner spongy part, which is useful for getting grafts to "take."

Bone Marrow: The tissue contained within the internal cavities of the bones. A major function of this tissue is to produce red blood cells.

Bone Morphogenetic Protein 2 (BMP-2): One of a family of BMPs - naturally occurring chemicals in the body that play a major role in bone growth. BMP-like products: proteins that enhance mineralization, which can increase bone formation.

Bone Plate: Usually a relatively thin metal device which is affixed to bone via screws. Bone plates are used to immobilize bones or bone fragments such that healing can occur.

Bone Screw: A threaded metal device which is inserted into bone. The functions of bone screws are to immobilize bones or bone fragments or to affix other medical devices, such as metal bone plates, to bones.

Bosworth: A fusion using an H-shaped bone graft in spondylolisthesis.

Bovine Bone Extract: ABMP derived from the bones of bovines

Brachial: Relating to the arm.

Bradford: For kyphoscoliosis deformity; staged anterior and posterior approach for inter-body fusion and correction of deformity.

Bradycardia: Slowness of the heart rate.

Bradykinesia: Slowness in movement.

Brattstrom: Use of acrylic cement for C-1 to C-2 fusion.

Brooks and Jenkins: Loops of wire around lamina of C-1 and C-2 to hold bone graft between lamina.

Brown-Sequard's Syndrome: Loss of sensation of touch, position sense, and movement on the side of a spinal cord lesion, with loss of pain sensation on the other side. Caused by a lesion limited to one side of spinal cord.

Burr: An electrical drilling tool for enlarging atrephine (circular) hole in the cranium.

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 C

Cartilage: The thin hard rubbery layer of white glossy tissue that covers the end of bone at a joint, providing a cushion. This tissue allows motion to take place with a minimum amount of friction.

Cauda Equina Syndrome: Cauda equina syndrome is caused by the significant narrowing of the spinal canal that compresses the nerve roots below the spinal cord. Causes of this syndrome include spinal stenosis, injury(traumatic), disc herniation, spinal tumors, meningiomas, schwannomas, ependymomas, inflammatory conditions, and infectious conditions. Cauda equina syndrome is considered a surgical emergency because if left untreated it can lead to permanent loss of bowel, bladder control and leg paralysis.

Causalgia: Intense pain and sensitivity usually following injury to a peripheral nerve.

Central Nervous System (CNS): The portion of the vertebrate nervous system consisting of the brain and spinal cord and nerve roots

Central Pain: Pain associated with a lesion or dysfunction of the central nervous system.

Centrum: The body of a vertebra. A cylinder shape bone in the spine separated by discs

Cervical Corpectomy: When a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. A bone graft, and in some cases a metal plate and screws, is used to stabilize the spine.

Cervical: The neck region of the spine containing the first seven vertebrae, which curve forward.

Cholesterol: The most abundant steroid in animal tissues. Used as a vital part of the membrane in every cell in the body. Used a precursor to hormones. It is an animal sterol that is normally created by the liver. Without cholesterol we would die. It can be found in animal tissues and various foods

Chronic Pain: The opposite of acute pain. Persistent, long-term pain that serves no biological or protective purpose. With chronic pain damage or changes in the Central Nervous System continue to send "Pain" and Inflammatory messages to the brain long after tissues have healed. This type of pain is no longer a 'symptom' of a type of conditional tissue damage or disease but has become an actual 'condition' or 'disease of the Central Nervous System itself, which requires specialized treatments.

Chronic Fatigue Syndrome:
A condition of prolonged and severe tiredness or weariness (fatigue) that is not relieved by rest and is not directly caused by other conditions. To be diagnosed with chronic fatigue syndrome, the tiredness must be severe enough to decrease ability to participate in ordinary activities by 50%

Claudication: The pain in the calf or thigh muscle that occurs after you have walked a certain distance.

Coccyx: The region of the spine below the sacrum near the anus-also known as the tailbone. It is the lowest part of the spinal column.

Collagen: A fibrous protein which is the principal protein and constituent of connective tissue, such as skin, tendons, ligaments, cartilage, and bones.

Compensatory Curve: A particular curve, which can be structural, above or below a major curve which tends to maintain normal body alignment.

Compression: The act of pressing or squeezing together in the direction of a straight line, often referring to the loss of vertebral body height either anteriorly, posteriorly or both; the application of pressure or squeezing which causes an increase in density and decrease dimension of a certain body.

Congenital: Present at birth and still existing after-words.

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D


Deafferentation: Pain Pain due to the loss of normal sensory input into the central nervous system.

Dermatomes: Areas of skin supplied by fibers of single nerve roots, which are part of the PNS.

Disc (Intervertebral disc): The tough, cartilaginous, elastic structure that acts as a cushion between the bodies of spinal vertebrae. The disc is made up of an outer "annulus fibrosus" which encloses an inner "nucleus pulposus". (edit start)

Disc Degeneration: The gradual or quick deterioration of the structural and functional integrity of the disc.

Discectomy: Surgical removal of part or all of an intervertebral disc which is placing pressure on neural elements.

Disease: An alteration in the state of the body or of some of its organs, interrupting or disturbing the performance of the vital body functions

Disorder: (medical) a disturbance of normal functioning (Also See: Disease)

Distal: 1. Situated away from the center of the body. 2. The more (or most) distant of two (or more) things.

Dysesthesia: An abnormal, unpleasant sensation.
 

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E


Endocrine System: the glands and parts of glands that produce endocrine secretions (hormones) that help to integrate and control bodily metabolic activity - and which are transmitted by the blood to the tissue on which it has a specific effect. These glands include especially the pituitary, thyroid, parathyroids, adrenals, islets of Langerhans, ovaries, and testes

Epidural Injection: An injection into the outer layer of the spinal canal (the epidural space).

Epidural: The outer layer that surrounds the brain and spinal cord.

Eudynia: Term used to explain experienced pain as a symptom of disease. Also See Maldynia

Excision: Removal by cutting away material.

Extension: Bending Backward

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F
 

Facet Joints: Also called Zygapophyseal Joints are the flat surfaced joints at the back of the vertebrae These joints enable spinal movement. The facets from the upper and lower vertebrae join together to form a joint. Like other joints in the body, the moving surfaces are coated with smooth cartilage to facilitate movement

Facet: A flat plate-like surface that functions as part of a joint- two examples of such are in the vertebrae of the spine, and in the subtalar joint of the ankle. Two facets of adjacent vertebrae combine to form a facet joint, which allows motion in the spinal column.

Facetectomy: Excision or removal of a facet.

Fascia: Several layers of fibrous connective tissue that cover muscles. Fascia extends beyond the muscle to become the tendon that attaches the muscle to bone.

Fatigue Fracture: A fracture occurring in bone or in other materials due to repeated stress as opposed to a single event causing an injury.

Fibromyalgia: A a chronic disorder that causes widespread pain, tenderness(sometimes extreme) in the muscles and soft tissue (including tender points) of the body.  It can also be associated with sleep problems, fatigue, and a variety of other symptoms. Less common symptoms can include swallowing, breathing, bowel and bladder problems.

Fibrosis: The replacement of normal tissue with scar tissue.

Flexion: Bending Forward

Foramen: (AKA Neuroforomen:) A natural passageway or opening in bone through which pass the nerve roots of the spianl cord. The plural of foramen is known as "foramina" (Seems that spelling used can include both foramen or foramin)

Foraminotomy  When the foramin (the area where the nerve roots exit the spinal canal) is removed to increase space over a nerve canal. This surgery can be done alone or along with a laminotomy;

Fracture: A disruption or 'break' in the normal continuity of bone. Typical fracture types are: Greenstick, Spiral, comminuted, transverse, compound, and compression.

Fusion: Union or healing of bone.


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G
 

Gibbus: A sharply angular kyphos.

 

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H 


HDL: (High-Density Lipoprotein) Also known as "Good Cholesterol" Is a lipoprotein of blood plasma that is composed of a high proportion of protein with little triglyceride and cholesterol and that is associated with decreased probability of developing atherosclerosis. — compare LDL, VLDL, LP(a)

Heat Therapy: The application of heat to the muscles, which dilates blood vessels of the muscle, increasing the flow of oxygen and nutrients to the muscles. The application of heat also stimulates the sensory receptors in the skin which decreases the transmissions of pain signals to the brain relieving discomfort.

Herniated Disc: Extrusion of part of the nucleus pulposus material through a defect in the annulus fibrosis.. 2nd defn: A disc that is displaced from its position between two vertebrae, with injury to the annular ligament.

Histopathology: Is when the cells and /or organs in the body are not functioning properly. This can result from the nerve not supplying the correct message to the cells/organs. This can lead to many problems.

Hormone: A substance, usually a peptide or steroid, a product of living cells that circulates in body fluids or sap and produces a specific effect on the activity of cells remote from its point of origin; especially one exerting a stimulatory effect on a cellular activity such as growth or metabolism

Hyperesthesia: Abnormal, increased, acute sensitivity to sensory stimulation of the skin.

Hypertrophic: To grow abnormally large

Hypoalgesia: Abnormal, diminished, decreased sensitivity to sensory stimulation of the skin.
 

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 I


Iatrogenic Injury: An injury in hospital due to a medical error and/or adverse drug reaction

Immobilization: Limitation of motion, or fixation of a body part or body usually to enable healing.

In Vivo: Within a living organism. In vivo is Latin for in life.

Ischemia: A decrease in the blood supply to a bodily organ, tissue, or part caused by constriction or obstruction of the blood vessels - tissues become starved for oxygen and nutrients.

Isthmic: Joint: The area where two bones are attached for the purpose of motion of body parts. A joint is most often formed of cartilage and fibrous connective tissue.

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 L



LP(a): Is a relative of LDL or bad cholesterol. The difference between Lp(a) and low density lipoproteins (LDL) is apolipoprotein apo(a), (a glycoprotein structurally similar to plasminogen), the precursor of plasmin, the fibrinolytic enzymeIs a major risk factor for atherosclerosis and cardiovascular disease. — compare HDL, VLDL. LDL

LDL: (Low-Density-Lipoprotein) Also known as "Bad Cholesterol" is a lipoprotein of blood plasma that is composed of a moderate proportion of protein with little triglyceride and a high proportion of cholesterol and that is associated with increased probability of developing atherosclerosis —compare HDL, VLDL, LP(a)

Lamina: The flattened or arched part of the vertebral arch, forming the roof of the spinal canal. The posterior part of the spinal ring that covers the spinal cord or nerves.

Laminectomy: The excision of one or more laminae of the vertebrae. A laminectomy is done to relieve pressure on the spinal cord or on the nerve roots which emerge from the spinal canal itself.

Laminoplasty: A posterior approach in which the spine is reached from the back of the neck and involves the surgical reconstruction of the posterior elements of the spine to make more room for the spinal canal.

Laminotomy: When only a small portion of the lamina is removed to relieve pressure on the nerve roots;

Laser: A device that creates and uses Light Amplified by Stimulated Emission of Radiation-or in other words, a powerful focused beam of light. The beam of light, can be used for several different applications like microsurgery, diagnostic purposes, cauterization, and several others. A common application is in microsurgery, where it is used to cut and remove tissue.

Lateral: Situated away from the midline of the body. In anatomy, it is referred to as the side of the body or body part that is further from the center of the body.

Ligament: A band of flexible, fibrous connective tissue that is attached at the end of a bone near a joint. The ligament functions to attach bones to one another, to provide joint stability, and to prevent or limit some joint motion.

Ligaments: Connect bone to bone and provides structural Ligaments are composed of fibrous connective tissues made up of densely packed collagen fibers and when injured they can take a long time to heal because their blood supply is limited.

Lipoprotein: any of a large class of conjugated proteins composed of a complex of protein and lipid —see HDL, LDL, VLDL

Lordosis: An abnormal increase in the normal curvature (lordotic ) of the lumbar section of the spine.

Lumbago: A term, non-medical in origin, referring to pain in the lumbar region of the spine.

Lumbar: The lumbar section of the spine consists of five vertebrae, referred to as L1 through L5 and is the lower part of the
 spine between the thoracic region and the sacrum. There are five lumbar nerves correspond to the five lumbar vertebrae.


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 M



Maldynia: Term used to explain pain as the primary disease Also See: Eudynia

Medial Facetectomy: When part of the facet (a bony structure in the spinal canal) is removed to increase the space;

Medial: Situated closer to the midline of the body. It is the opposite of lateral.

Minimally Invasive Surgery: Surgery requiring small incisions, which most often involves using the aid of endoscopic visualization.

Muscle Spasm: A sudden, involuntary contraction of a muscle or group of muscles.

Myelopathy: Refers to pathology of the spinal cord. When due to trauma, it is known as spinal cord injury. When it is inflammatory, it is known as myelitis. A disease that is vascular in nature is known as vascular myelopathy.

Myopathology: This means that the muscles of the body are malfunctioning or are impaired from too much or too little nerve supply. This then means that the muscle will either be contracting too much or not enough. Both of these responses cause the muscle to fatigue more easily and loose power. Dependent upon which muscle or muscles are involved this can cause instability in the spine and hasten degenerative processes. If muscles can't work properly, the result will be chronic pain, muscle fatigue and swelling.
 

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 N


Narcotic: Usually refers to opioids--pain-relieving drugs that are derivatives of opium.

Nerve Block: Minimally invasive procedure involving an injection of medication directly into or around a nerve or group of nerves to provide regional pain relief.

Nerve Root: where the main nerves of the body leave the spinal cord and pass out of the spinal canal through the intervertebral foramen, where they then feed through the body either anteriorly (motor nerves) or posteriorly (sensory nerves). The anterior divisions supply the front of the spine including the limbs. The posterior divisions are distributed to the muscles behind the spine.

Neuralgia: Pain In the distribution of a nerve or nerves and caused by nerve damage or dysfunction.

Neuritis: Inflammation of a nerve or nerves.

Neuropathic Pain:  Pain produced by a malfunctioning of the (CNS) central nervous system

Neuropathophysiology: When a joint or organ in the body is irritated, it can reflect on to the nerves and irritate them. The nerves can also be irritated by over stretching. The irritation to the nerves can either speed up or slow down the message that the nerve is transmitting. This then alters the message to the brain or the organ. As a result of this the organ or joint may not work properly or the brain may interpret the condition of the joint or organ etc improperly

Neuropathy: Disturbance of function or pathologic change in one or more nerves

Neurosurgery: Any surgery that involves the nervous system which is comprised of the brain, spinal cord and peripheral nerves.

Nociceptive: Response to a painful stimulus.

Nociceptor: A sensory nerve receptor that responds to pain.

Noxious Stimulus: A stimulus that is harmful or potentially harmful to body tissue, and triggers a painful or unpleasant sensation.

Nucleus Pulposus: The semi-gelatinous tissue ( sort of like a combination of jello and toothpaste) in the center of an intervertebral disc. It is surrounded and contained by the annulus fibrosus which prevents this material from protruding outside the disc space. This material contains highly irritating and inflammatory chemicals which are a secondary cause of pain when they come into contact with spinal tissue


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 O


Opioid or Opiate: A pain-killing drug chemically related to opium.

Orthopaedics (also Orthopedics): The branch of surgery broadly concerned with the skeletal system including treatment of spinal disorders and peripheral nerve injuries.

Ossification: The process of transforming cartilage-also known as fibrous tissue-into bone.

Osteoporosis: A disorder in which thinning of bone and reduction in bone mass and density takes place which is due to the depletion of calcium and bone protein in the body which in turn is a result of a number of different diseases and abnormalities.


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 P


Pain: An unpleasant feeling that may be associated with disease or trauma.

Pain Threshold: The most minimal stimulation that a person recognizes as painful—this varies from individual to individual.

Pain Tolerance Level:  The greatest amount of pain a person can tolerate.

Paresthesia: An abnormal sensation such as tingling or ‘pins and needles’ that may be uncomfortable, but not truly painful.

Pars Defect: Any defect occurring in that portion of the laminar plate which connects the superior and inferior articulating processes. (facet Joints) e.g. congenital weakness, crack or fracture. Usually associated with Spondylolsis

Pathology: The study of disease states.

Pathophysiology:  This means that the biochemical processes (chemical day-to-day running) of the body are not working properly. This can simply be the result of the nerve or the cells and/or organs malfunctioning

Pedicle: The part of each side of the neural arch of a vertebra. The pedicle connects the vertebral body with the lamina.

Pelvic Obliquity: Deviation of the pelvis from the horizontal in the frontal plane. Fixed pelvic obliquities can be attributed to contractures either above or below the pelvis. (word per word from www.back.com )

Periosteum: A fibrous membrane that envelopes the surface of bone, except at the end of the bones where it is covered with cartilage instead as part of a joint. In children, periosteum is involved in the formation of new bone and molding the configuration of bone where as in the adult the periosteum forms new bone secondary to infection or injury.

Peripheral Nervous System (PNS): The nerves beyond the spinal nerve roots.

Physical Therapy: A branch of rehabilitative health which uses treatments usually consisting of exercising specific parts of the body such as the arms, legs, hands, neck, to strengthen, regain proper motion, and rehabilitate the musculoskeletal system to improve function.

Physiology: The science of the functioning of living organisms, which can include movement, reproduction, anatomy to name a few.

Piriformis Syndrome: A condition in which the piriformis muscle contracts or spasms and places pressure on the sciatic nerve, which passes through this muscles, causing pain in the buttocks and/or along the back of the leg and into the foot. These same symptoms can be found in normal causes of Siatica. This condition is most common among women, and strangely is thought to be common among both physically active athlectic individuals (such as bikers, runners and walkers) and those who's jobs or activities involve prolonged sitting.  Also See: Sacroiliac Joint Dysfunction and Siatica

Posterior: Located or positioned behind a structure. Also referred to the human "behind" or rear.

Prosthesis: An artificial body part such as an artificial leg, arm or foot, which replaces a missing or damaged body part.
 "Prosthesis" can also used to describe some of the implants used in the body like an elbow replacement device for example.

Proximal: Closest to or nearest to the center of the body.

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 R


Radiculitis: Inflammation of a nerve root in the spinal canal.

Radiculopathy: Pain and neurologic deficit caused by injury to a nerve root.

Referred Pain: Pain felt in a body part that is distant from the pain origin. The origin and the body part may share a common nerve pathway.

Resection: The surgical removal of part of a structure, such as bone or organ.

Resorption: The removal or loss of bone tissue by normal physiological process, or as part of a pathological process such as an infection.

Rhizotomy: Surgical incision of nerve root(s) within the spinal canal.

Rib Hump: The prominence of the ribs on the convexity of a spinal curvature, usually due to vertebral rotation best exhibited on forward bending.

Rod: In spinal applications, a slim shaped metal implant used to immobilize and align the spine.

Rotation: The movement of one vertebra to another about its normal or abnormal coronal axis.

Ruptured Disc: See "Herniated Disc".

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 S


Sacroiliac Joint Dysfunction: While it is not totally accepted or clear how the pain is caused, it is thought that a change in the normal motion of this joint may be the cause of sacroiliac joint pain. It is also prey to normal degenerative and inflamatory changes as is any other joint. This source of pain can be caused by either too much or too little movement. The joint can become irritated through abnormal movement occurring on a repetitive basis. Other causes have been linked to heavy impact sports, through jumping and twisting, and high impact accidents. The pain is typically felt on one side of the low back or buttocks, and can radiate down the leg. The pain usually remains above the knee, but at times pain can extend to the ankle or foot which can mimic siatica. Hormones in pregancy can 'relax' joints and can be the cause of too much movement in this joint causing pain and instability in gait (movement when walking).  Also see: Sciatica and Piriformis Syndrome

Sacrum: The large bone at the base of the spine, which is comprised of 5 fused sacral vertebrae, which have no intevertebral discs. It is part of the spine that is part of the pelvis.

SCI: A medical term, in abbreviation form, standing for "Spinal Cord Injury"

Sciatica: A lay term refers to a symptom and not to a disease - indicating pain along the course of a sciatic nerve, especially noted in the back of the thigh and below the knee.Sciatica. It usually starts from the buttock and extends posteriorly (behind) down to the thigh, calf and foot. Impinchment on the sciatic nerve can be caused by: herniated disc, lumbar spinal stenosis, degenerative disc disease, or spondylolisthesis. Other conditions that should also be considered are, Piriformis Syndrome and
Sacroiliac Joint Dysfunction. Symptoms that may constitute a medical emergency include progressive weakness in the legs or bladder/bowel incontinence. Patients with these symptoms may have "Cauda Equina Syndrome" and should seek immediate medical attention. Also See: Sacroiliac Joint Dysfunction and Piriformis Syndrome

Scoliosis: The lateral (sideways) curvature of the spine.

Skeleton: The rigid framework of bones that gives form to the body, and also serves to protect and support the soft organs as well as tissues, and provides attachments for muscles.

Somatosensory: Sensory signals from the body—usually referring to signals from the limbs rather than internal organs.

Spinal Canal: The bony channel - that is formed by the intravertebral foramen of the vertebrae-which contains the spinal cord and nerve roots.

Spinal Column: See Spine.

Spinal Cord: The cord of nerve tissue, which is housed in the spinal canal from which the spinal nerves emerge. It is a part of the Central Nervous System. It functions as both the command post for carrying out the many reflex actions that are independent of the brain, and as a route for the entire body's nervous impulses that travel to and from the brain. There are thirty-one pairs of spinal nerves that originate in the spinal cord with 8 from the cervical, 12 from the thoracic, 5 each from the lumbar and sacral regions and 1 from the coccyx.

Spinal Disc: See Disc (Intervertebral).

Spinal Fusion: A surgical procedure to permanently unite two or more vertebrae in the spine so that there is no longer motion occurring between them.

Spinal Kinesiopathology: This simply means that the movement of the spine are not within the normal ranges. It restricts your ability to turn and bend. The joints of the body are designed to move and when they are not moving properly, this causes an irritation to the body. The irritation to the joint can then reflect to the spinal nerve and can result in neuropathophysiology.

Spinal Nerves: Spinal nerve – formed by the dorsal nerve roots - (or back of the spine) which supply the sensory system and ventral nerve roots- (or front of the spine) supplying the motor nerve system of the cord, which pass in/out of the vertebral canal through the intervertebral foramina

Spinal Stenosis: Decrease diameter of the spinal canal due to new bone formation, which may result in pressure on the spinal cord or nerve roots. This occurs most often in the lumbar spine(low back) and to a lesser extent the cervical spine, and even less, the thoracic spine.

Spine: The flexible column of bone known as the vertebral column, which surrounds and protects the spinal cord. The spine which is composed of 33 vertebrae, extends from the base of the skull all the way down to the tailbone. The spine can be categorized into different regions, which are the cervical, thoracic, lumbar spine and coccyx regions respectively. The first 24 vertebrae are separated by intervertabral discs, and are held together by both muscles and ligaments. The next five vertebrae are fused together to make up the sacrum, and the last four are fused together to form the coccyx. The spine is also often referred to as the backbone, vertebral column or spinal column.

Spondylitis: The inflammation of vertebrae.

Spondylolisthesis: An alignment abnormality of the spine in which one vertebra is displaced with respect to another. Forward slip of of one vertebra over another associated with a spondylolysis, high impact accidents especially in the cervical area and/or degenerative changes.

Spondylolysis: Slipping forward of one vertebra over another with stress fracture through the pars interarticularis. Due to repetitive flexion and extension in the adolescent spine. Spondylolysis occurs more frequently in children who are athletic than in sedentary individuals. It is reported to occur in 11% of female gymnasts. Spondylolysis also occurs in a dysplastic form due to underlying congenital abnormalities of the lumbar spine such as partial sacralization of a lower lumbar vertebral body or to an elongated isthmus. A defect in the neural arch between the superior and inferior facets of vertebrae without separation at the defect and therefore no displacement of the vertebrae. Fractures and slippage can also be attributed to high impact accidents generally associated with the cervical spine.

Spondylosis: A degenerative disease (usually referred to as Osteoarthritis) of the spinal column, especially one leading to fusion and immobilization of the vertebral and leading to spinal stenosis without correct intervention. It occures in essentially the entire aging population,

Sprains: a sprain is a partial tearing of a ligament caused by movement beyond that ligament's normal range.

Strains: a strain is an overstretching of a ligament or muscles caused by overexertion. (In this case there is no actual tear.)

Superior: Situated above, over top of, or directed upward toward the head of an individual. The head is superior to the shoulders for example.

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 T


Tendons: Attach muscle to bone are composed of fibrous connective tissues made up of densely packed collagen fibers. Injury to tendons can take a long time to heal, as they have a limited blood supply.

Thoracic: The region of the spine that chest level, which is found between the cervical and lumbar vertebrae regions. It consists of a total of 12 vertebrae, and are the locations at which the ribs attach.

Translation: Displacement of the Vertebral Body. It can describe anterior, posterior, or lateral displacement.

Transplant: The implantation of bone tissue from one part of the body to another, or from one individual to another. Transplant can also refer to the transfer of an organ from one individual to another.

Transverse: Refers to medically defined 'lines' that divides the body into the superior and inferior regions.

Trigger Point: An area in muscle or connective tissue that is hypersensitive to touch or pressure.

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 V


VLDL: (Very-Low-Density Lipoprotein) A plasma lipoprotein that is produced primarily by the liver with lesser amounts contributed by the intestine, that contains relatively large amounts of Triglycerides compared to protein, and that leaves a residue of cholesterol in the tissues during the process of conversion to LDL — compare HDL, LDL

Vertebra: One of the 33 bony segments that comprise spinal column. There are 7 vertebrae in the cervical region of the spine, 12 in the thoracic, 5 in the lumbar, 5 in the sacral, and 4 in the coccyx. The plural of vertebra is vertebrae.
 

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 Z


Zygapophyseal Joints: (See Facet Joints)
 

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