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Lasegue sign
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Lasegue sign Pain in the back of the leg on flexing a patient's hip and knee and then extending the knee while the hip is flexed. Results from dural irritation, usually by a prolapsed disc.
RELATED TERMS--------------------------------------
Pain
An unpleasant sensory or emotional experience primarily associated with tissue damage, or described in terms of tissue damage, or both.
Knee
The complex hinge joint of the upper and lower leg involving the femur, tibia and patella.
Dural
Pertaining to the dura.
Disc
Shortened terminology for an intervertebral disc, a disk-shaped piece of specialized tissue that separates the bones of the spinal column.
SIMILAR TERMS--------------------------------------
Laser
An acronym of light amplification by stimulated emission of radiation. A surgical tool that creates intense heat and power when focused at close range, destroying cells by vaporizing them.
Laser Center
The Laser Center is a hospital in Scranton, Pennsylvania, United States.
Laser Treatment
Using a special strong beam of light of one color (laser) to heal a damaged area. A person with diabetes might be treated with a laser beam to heal blood vessels in the eye.
LASERS
Recently high intensity light (lasers) has been developed for use in the dental field. Dental lasers allow for an easier and cleaner way to cut soft tissue and recently have been improved to enable the dentist to cut hard tissue (enamel) as well. The lasers used in dentistry come in three different variations. The greatest difference is in the laser beam and the depth of cut and temperature at the surface of the cut being made by the laser. The two most common types of soft tissue lasers are the CO2 laser and the YAG laser. The CO2 cuts more on the surface and does not raise the temperature very high on the surface to be treated which allows the tissue a better response to healing. The YAG laser will cut deeper and at a higher temperature so it can overheat some of the underlying structures below the tissue surface. The third type of laser is the newly developed laser for cutting hard tissue (enamel) called the erbium laser. An attribute of the erbium laser is that it does not overheat the tooth so that the tooth pulp (nerve) will not die. The erbium laser is currently being utilized in a small number of dental practices in the United States but may be more generally available in the near future.
PREVIOUS AND NEXT TERMS--------------------------------------
Laminate
Thin plastic or porcelain veneer produced in a dental laboratory and then bonded to a tooth.
Laughing gas
Nitrous oxide; odorless inhalation agent that produces relative analgesic (sedation); reduces anxiety and creates a state of relaxation.
Lesion
Injury of bodily tissue due to infection, trauma or neoplasm
Local anesthesia
Partial or complete elimination of pain sensation, in the immediate vicinity of its application or injection.
Laminectomy
Operation to remove prolapsed disc - involves removal of part of a vertebra.
Lasegue sign
Lesch-Nyhan syndrome
Results from congenital deficiency of hypoxanthine guanine phosphoribosyl transferase (HGPRT) - resulting in hyperuricaemia. Causes gout (even in a baby), mental retardation and choreoathetosis.
Letterer-Siwe Disease
A form of Histiocytosis-X
Leukocyte
White blood cell.
Lhermitte's sign
Occurs on neck flexion and implies spinal cord compression or other abnormality. Patient experiences a sensation like an electric shock in the limbs. Most common in cervical myelopathy due to stenosis resulting from degenerative change and demyelination (multiple sclerosis).
Libman-Sachs endocarditis
Sterile endocarditis which occurs in SLE.
RELATED TERMS--------------------------------------
Pain
An unpleasant sensory or emotional experience primarily associated with tissue damage, or described in terms of tissue damage, or both.
Knee
The complex hinge joint of the upper and lower leg involving the femur, tibia and patella.
Dural
Pertaining to the dura.
Disc
Shortened terminology for an intervertebral disc, a disk-shaped piece of specialized tissue that separates the bones of the spinal column.
SIMILAR TERMS--------------------------------------
Laser
An acronym of light amplification by stimulated emission of radiation. A surgical tool that creates intense heat and power when focused at close range, destroying cells by vaporizing them.
Laser Center
The Laser Center is a hospital in Scranton, Pennsylvania, United States.
Laser Treatment
Using a special strong beam of light of one color (laser) to heal a damaged area. A person with diabetes might be treated with a laser beam to heal blood vessels in the eye.
LASERS
Recently high intensity light (lasers) has been developed for use in the dental field. Dental lasers allow for an easier and cleaner way to cut soft tissue and recently have been improved to enable the dentist to cut hard tissue (enamel) as well. The lasers used in dentistry come in three different variations. The greatest difference is in the laser beam and the depth of cut and temperature at the surface of the cut being made by the laser. The two most common types of soft tissue lasers are the CO2 laser and the YAG laser. The CO2 cuts more on the surface and does not raise the temperature very high on the surface to be treated which allows the tissue a better response to healing. The YAG laser will cut deeper and at a higher temperature so it can overheat some of the underlying structures below the tissue surface. The third type of laser is the newly developed laser for cutting hard tissue (enamel) called the erbium laser. An attribute of the erbium laser is that it does not overheat the tooth so that the tooth pulp (nerve) will not die. The erbium laser is currently being utilized in a small number of dental practices in the United States but may be more generally available in the near future.
PREVIOUS AND NEXT TERMS--------------------------------------
Laminate
Thin plastic or porcelain veneer produced in a dental laboratory and then bonded to a tooth.
Laughing gas
Nitrous oxide; odorless inhalation agent that produces relative analgesic (sedation); reduces anxiety and creates a state of relaxation.
Lesion
Injury of bodily tissue due to infection, trauma or neoplasm
Local anesthesia
Partial or complete elimination of pain sensation, in the immediate vicinity of its application or injection.
Laminectomy
Operation to remove prolapsed disc - involves removal of part of a vertebra.
Lasegue sign
Lesch-Nyhan syndrome
Results from congenital deficiency of hypoxanthine guanine phosphoribosyl transferase (HGPRT) - resulting in hyperuricaemia. Causes gout (even in a baby), mental retardation and choreoathetosis.
Letterer-Siwe Disease
A form of Histiocytosis-X
Leukocyte
White blood cell.
Lhermitte's sign
Occurs on neck flexion and implies spinal cord compression or other abnormality. Patient experiences a sensation like an electric shock in the limbs. Most common in cervical myelopathy due to stenosis resulting from degenerative change and demyelination (multiple sclerosis).
Libman-Sachs endocarditis
Sterile endocarditis which occurs in SLE.
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This dictionary contains 19186 terms.
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