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Statements

Subject Item
dbr:Polyaxial_screw
rdf:type
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rdfs:label
Polyaxial screw
rdfs:comment
A polyaxial screw is used for connecting vertebrae to rods in spinal surgery, particularly spinal fusion procedures. It is a type of screw whose spherical head is enclosed in a housing, which allows the screw a range of motion along several different axes relative to the housing. The ball joint allows the surgeon some flexibility in placing the screws. The screws are typically placed into the pedicle of the vertebra.
dcterms:subject
dbc:Orthopedic_screws
dbo:wikiPageID
3644357
dbo:wikiPageRevisionID
1028633467
dbo:wikiPageWikiLink
dbr:Spinal_surgery dbr:Ball_joint dbr:Multiplanar_rod dbr:Vertebra dbc:Orthopedic_screws dbr:Orthopaedic_rod dbr:Vertebrae dbr:Vertebral_fixation dbr:Cervical_spondylosis dbr:Lateral_mass_plate
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dbo:abstract
A polyaxial screw is used for connecting vertebrae to rods in spinal surgery, particularly spinal fusion procedures. It is a type of screw whose spherical head is enclosed in a housing, which allows the screw a range of motion along several different axes relative to the housing. The ball joint allows the surgeon some flexibility in placing the screws. The screws are typically placed into the pedicle of the vertebra. It has also been hypothesized that polyaxial screws add a safety benefit by failing in the housing/screw interface before breaking in the shaft of the bone screw or in the . Unlike standard and screw systems, the new cervical polyaxial screw and rod system easily accommodates severe degenerative cervical spondylosis and curvatures. This instrumentation system allows for polyaxial screw placement with subsequent contouring and offset attachment.
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wikipedia-en:Polyaxial_screw?oldid=1028633467&ns=0
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1780
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wikipedia-en:Polyaxial_screw