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Paralysis is a loss of motor function in one or more muscles. Paralysis can also be accompanied by a loss of feeling in the affected area if there is sensory damage. In the United States, roughly 1 in 50 people have been diagnosed with some form of permanent or transient paralysis. The word "paralysis" derives from the Greek παράλυσις, meaning "disabling of the nerves" from παρά (para) meaning "beside, by" and λύσις (lysis) meaning "making loose". A paralysis accompanied by involuntary tremors is usually called "palsy".
Syringomyelia is a generic term referring to a disorder in which a cyst or cavity forms within the spinal cord. Often, syringomyelia is used as a generic term before an etiology is determined. This cyst, called a syrinx, can expand and elongate over time, destroying the spinal cord. The damage may result in loss of feeling, paralysis, weakness, and stiffness in the back, shoulders, and extremities. Syringomyelia may also cause a loss of the ability to feel extremes of hot or cold, especially in the hands. It may also lead to a cape-like bilateral loss of pain and temperature sensation along the upper chest and arms. The combination of symptoms varies from one patient to another depending on the location of the syrinx within the spinal cord, as well as its extent.
Transverse myelitis (TM) is a rare neurological condition wherein the spinal cord is inflamed. The adjective transverse implies that the spinal inflammation (myelitis) extends horizontally throughout the cross section of the spinal cord; the terms partial transverse myelitis and partial myelitis are sometimes used to specify inflammation that affects only part of the width of the spinal cord. TM is characterized by weakness and numbness of the limbs, deficits in sensation and motor skills, dysfunctional urethral and anal sphincter activities, and dysfunction of the autonomic nervous system that can lead to episodes of high blood pressure. Signs and symptoms vary according to the affected level of the spinal cord. The underlying cause of TM is unknown. The spinal cord inflammation seen in TM has been associated with various infections, immune system disorders, or damage to nerve fibers, by loss of myelin. As opposed to leukomyelitis which affects only the white matter, it affects the entire cross-section of the spinal cord. Decreased electrical conductivity in the nervous system can result.
Tetraplegia, also known as quadriplegia, is defined as the dysfunction or loss of motor and/or sensory function in the cervical area of the spinal cord. A loss of motor function can present as either weakness or paralysis leading to partial or total loss of function in the arms, legs, trunk, and pelvis; paraplegia is similar but affects the thoracic, lumbar, and sacral segments of the spinal cord and arm function is spared. The paralysis may be flaccid or spastic. A loss of sensory function can present as an impairment or complete inability to sense light touch, pressure, heat, pinprick/pain, and proprioception. In these types of spinal cord injury, it is common to have a loss of both sensation and motor control.
Paraplegia, or paraparesis, is an impairment in motor or sensory function of the lower extremities. The word comes from Ionic Greek (παραπληγίη) "half-stricken". It is usually caused by spinal cord injury or a congenital condition that affects the neural (brain) elements of the spinal canal. The area of the spinal canal that is affected in paraplegia is either the thoracic, lumbar, or sacral regions. If four limbs are affected by paralysis, tetraplegia or quadriplegia is the correct term. If only one limb is affected, the correct term is monoplegia. Spastic paraplegia is a form of paraplegia defined by spasticity of the affected muscles, rather than flaccid paralysis.
Richard Marvin Hansen is a Canadian track and field athlete, activist, and philanthropist for people with disabilities. Following a pickup truck crash at the age of 15, Hansen sustained a spinal cord injury and became a paraplegic. Hansen is most famous for his Man in Motion World Tour, in which he circled the globe in a wheelchair to raise funds for charity. He was inducted into Canada's Sports Hall of Fame in 2006. He was one of the final torchbearers in the 1988 Winter Olympics and the 2010 Winter Olympics. He was profiled and spoke during the 2010 Winter Paralympics opening ceremony.
A spinal cord injury (SCI) is damage to the spinal cord that causes temporary or permanent changes in its function. Symptoms may include loss of muscle function, sensation, or autonomic function in the parts of the body served by the spinal cord below the level of the injury. Injury can occur at any level of the spinal cord and can be complete, with a total loss of sensation and muscle function at lower sacral segments, or incomplete, meaning some nervous signals are able to travel past the injured area of the cord up to the Sacral S4-5 spinal cord segments. Depending on the location and severity of damage, the symptoms vary, from numbness to paralysis, including bowel or bladder incontinence. Long term outcomes also range widely, from full recovery to permanent tetraplegia or paraplegia. Complications can include muscle atrophy, loss of voluntary motor control, spasticity, pressure sores, infections, and breathing problems.
Patrick E. Crago is the Allen H. and Constance T.Ford Professor and Chairman of Biomedical Engineering at Case Western Reserve University in Cleveland, Ohio. Crago is a biomedical engineer currently serving as a Principal Investigator at the Cleveland FES Center.
Michael Gerard Utley is a former American football player. He played for the Detroit Lions of the National Football League (NFL) from 1989 through 1991, when he was paralyzed during a game.
Brown-Séquard syndrome is caused by damage to one half of the spinal cord, i.e. hemisection of the spinal cord resulting in paralysis and loss of proprioception on the same side as the injury or lesion, and loss of pain and temperature sensation on the opposite side as the lesion. It is named after physiologist Charles-Édouard Brown-Séquard, who first described the condition in 1850.
Marcus Dillistone is a British film director.
Surfer's myelopathy is a rare nontraumatic injury causing paraplegia which is paralysis below the waist. It is a spinal cord injury caused by hyperextension of the back. When the back is hyperextended, a blood vessel leading to the spine can become kinked, depriving the spinal cord of oxygen The first reported case of a patient with surfer's myelopathy undergoing acute spinal angiography revealed anterior spinal artery compromise. The condition gets its name because the phenomenon is most often seen in those surfing for the first time, but it can be caused by any activity in which the back is hyperextended. In some cases the paralysis is permanent.
Posterior spinal artery syndrome(PSAS), also known as posterior spinal cord syndrome, is a type of incomplete spinal cord injury. PSAS is the least commonly occurring of the six clinical spinal cord injury syndromes, with an incidence rate of less than 1%.
Jennifer French is an American SKUD 18 Para sailor.
Michael Fehlings is a Canadian neurosurgeon based at Toronto Western Hospital in Toronto, Ontario, Canada. Dr. Fehlings specializes in complex spine surgery with a special interest in traumatic and non-traumatic spinal cord injury and spine oncology. He mainly focuses on preclinical and clinical translational research related to enhancing repair and regeneration of the injured central nervous system. He holds many positions, including Head of the Spinal Program at the Toronto Western Hospital, Professor of Neurosurgery at the University of Toronto, Vice Chair Research at the University of Toronto, Halbert Chair in Neural Repair and Regeneration, Scientist at the McEwen Centre for Regenerative Medicine, McLaughlin Scholar in Molecular Medicine, and Co-Director of the University of Toronto Spine Program. He is the past inaugural Director of the University of Toronto Neuroscience Program, and was the previous Medical Director at Toronto Western Hospital. Dr. Fehlings is a Fellow of the American College of Surgeons and a Fellow of the Royal College of Surgeons of Canada.
The Case Western Reserve University Department of Biomedical Engineering launched in 1968 as one of the first Biomedical Engineering programs in the world. Formally incorporated in both the School of Engineering and School of Medicine, the department provides full research and education programs and is consistently top-ranked for graduate and undergraduate studies, according to U.S. News & World Report.
Spinal cord injury without radiographic abnormality (SCIWORA) is symptoms of a spinal cord injury (SCI) with no evidence of injury to the spinal column on X-rays or CT scan. Symptoms may include numbness, weakness, abnormal reflexes, or loss of bladder or bowel control. Neck or back pain is also common. Symptoms may be brief or persistent. Some do not develop symptoms until a few days after the injury.
Spinal cord injury research seeks new ways to cure or treat spinal cord injury in order to lessen the debilitating effects of the injury in the short or long term. There is no cure for SCI, and current treatments are mostly focused on spinal cord injury rehabilitation and management of the secondary effects of the condition. Two major areas of research include neuroprotection, ways to prevent damage to cells caused by biological processes that take place in the body after the injury, and neuroregeneration, regrowing or replacing damaged neural circuits.
Lynn T. Landmesser is a biologist from Santa Ana, California.
Paul Hunter Peckham is a professor of biomedical engineering and orthopedics at the Case Western Reserve University, and holds eight patents related to neural prosthetics. Peckham's research involves developing prostheses to restore function in the upper extremities for paralyzed individuals with spinal cord injury.
References
- ↑ "'Unprecedented': Drug May Help Heal Damaged Spine". NBC News. 2014-12-03. Retrieved 2018-08-19.
- ↑ Clair, Jeff St. (2018-07-27). "A Breakthrough in Cleveland Marks a Major Step Forward in Treating Spinal Cord Injuries". WKSU. Retrieved 2018-08-19.
- ↑ "Light revival". The Economist. 2008-11-13. Retrieved 2018-08-19.
- ↑ "Jerry Silver". Case Western Reserve University. Retrieved 2018-08-19.
